Clays, Glazes, Kilns, Machinery & Equipment . . . 2008 £3.00

Transcription

Clays, Glazes, Kilns, Machinery & Equipment . . .
2008
£3.00
. . . for Craft, Education & Industry
Potclays Ltd, Stoke-on-Trent, Studio Ceramics Showroom.
Contents
The Inside Story
This is a catalogue for potters, sculptors, tilemakers and ceramists in
craft, education and industry. Generally we have sought in its pages to
bring together a combination of our own manufactured products with a
selection of other brand names, many from prestigious international
suppliers for whom we are U.K. distributors. In addition we have sought
to provide much useful technical data so as to enable not only easier
selection of the product most suitable for a particular requirement but
also to provide important health and safety information.
We endeavour to cater for all degrees of skill: for the expert we offer
a wide range of clays, glazes, colours etc., suitable for use in advanced
techniques and capable of giving superb results. On the other hand, we
appreciate the difficulties of the less skilled and hence provide literature
and technical advice to assist in the choice of materials, equipment and
making methods.
Clays, Slips and Grogs
White, Red, Buff, Earthenware, Stoneware, Porcelain, Raku, Crank and
General Purpose Clays. Powdered Clays, Coloured Slips, Casting Slips,
Grogs, Sands, Raw Clays.
Glazes and Frits
Basic Materials
Section 3
Basic Materials, Opacifiers, Media.
Oxides and Prepared Colours
Section 4
Oxides, Underglaze Colours, Glaze Stains, ‘Velvet’, ‘Unidekor’, Onglazes,
Lustres.
Tools and Utensils
Section 5
Brushes. Modelling, Cutting, Turning and Shaping Tools. Klay Gun, Sponges,
Sieves, Scales, Corks and Whirlers.
Section 6
Buckets, Bins, Bottles, Bowls etc. Protective Clothing. Plaster Moulds.
Machinery and Equipment
Section 7
Potter’s Wheels, Pugmills, Mixers, Extruders, Pouring Tables, Rotary Sieve,
Slab Rollers and Pumps.
Kilns and Accessories
Section 8
‘Silver’ and ‘Etruscan’ top-loading kilns, ‘Gold’ and ‘EP’ front-loading Electric
Kilns, Truck Kilns, ‘Thor’ and ‘Laser’ Gas-Fired Kilns. Pyrometers,
Temperature Controllers and Orton Cones.
Books
Index and Technical Information
We extend a cordial invitation to visit us at our Showrooms in Etruria,
Stoke-on-Trent. You would always be most welcome and could collect
any requirements ‘on the spot’ thus avoiding carriage charges.
Section 2
Transparent, Translucent, Opaque, Coloured, Reactive, Artistic, Earthenware
and Stoneware Glazes. Brush-on Glazes. Lead, Borax, Zircon, Alkaline and
Low Expansion Frits. Botz, Mayco, Spectrum glazes.
Plastic Ware, Plaster Moulds, Clothing
We have been renowned as leading suppliers of clay for over
seventy years, most of these clays being based upon the unique
deposits taken from our clay mines at Brownhills, South Staffordshire.
In the last twenty years or so we have substantially increased our
manufacturing capabilities to include the manufacture of specialised
grogs, a comprehensive range of glazes and a wide range of top quality
kilns of both electric and gas fired types. Whilst our product range is
now very extensive we would however emphasise that our marketing
strategy is based upon flexibility and we are able to produce clays,
glazes and kilns to customers specification. If you therefore require a
product not included in this catalogue, or you require any amendment
or modification, do please let us know.
Section 1
Section 9
Section 10
Casting Slip Recipes, Conversion Tables etc. Analyses and Technical Data,
Clays and Raw Materials, Health and Safety Information.
Front cover illustration from a woodcut by Picolpasso
1
SECTION 1
Clay Selection
Selecting Clays
All our clay bodies are in ‘plastic’ form,
packed in 12.5 or 25kg packs, and ready
for use. When stored in a cool but frost
free situation, free from draughts and
direct sunlight, the clay packs will retain
their condition almost indefinitely.
For general use we particularly
recommend 150-1102 and 151-1124
bodies, both of which are slightly
grogged. If a smooth clay is preferred
then we suggest clays 159-1131, 1591135, or 159-1137 (red), 151-1120 (buff)
or 158-1141 and 158-4130 (white). For
more specialised needs the chart and
data given on pages 3-4, 6-7 and 68 will
assist.
The grogged clays, incidentally, may
not permit such finely detailed or turned
work but they have increased resistance
to warping and cracking.
Clays of wide firing range:
Some clays have very wide firing
ranges, enabling them to be used for
earthenware (1100-1150°C), middle
temp. (1180-1220°C) or stoneware (12201300°C).
These are:
Buff firing:
150-1102, 151-1120, 151-1124,
157-1150
Red firing:
159-1131, 159-3140, 159-1134
White firing:
158-1141, 158-2144, 158-4130
Technical Data
See page 68 for typical analyses etc.
Glaze Suitability/
Firing Temperatures
We recommend biscuit firing at 10001060°C then following with a glaze firing
to a higher temperature which matures
both the clay and the glaze at the same
2
time. Each clay body and each glaze is
catalogued with its firing range. When
selecting a glaze for use with a particular
clay it is important to select one with a
firing range which exceeds the lower
figure given for the clay. If this is not done
the clay will be underfired and the glaze
consequently may craze. Alternatively
one could biscuit fire the clay above the
lower figure given for the clay then glaze
fire to the firing range of the selected
glaze. However, this method may cause
difficulty with glaze pick-up when dipping
(although this can be overcome: see
3442 page 22). Bone china is invariably
produced this way.
Firing Rate
The optimum rate depends upon the
thickness of the pots and clay type e.g.
thin cast and grogged bodies can be fired
quicker than thrown and ungrogged
ones. Ideally, biscuit firings would be
slower than 100°C per hour up to 200°C
and 100 - 200°C per hour beyond that
point and ending with a short soak. Glaze
firings should be at 100-130°C per hour
but at 100°C per hour maximum from
700-1100°C with high carbon ball clay or
fireclay based bodies.
Maximum Firing Temperature
This is approximately indicated by the
vitrification point stated for each clay on
page 68 but, with stoneware, it will be
lowered by reduction firing conditions
and is dependent upon other factors
such as firing cycle. Consequently this
figure is given only as a guide for
comparison purposes. If clays are fired
above their vitrification point then
bloating is likely. Bloating may also result
from insufficient biscuit firing or too fast
firing in the later stages of the glost firing.
Conversely, overlong firings may give
excess heat work and cause bloating.
Recipe Amendments
Recipes of heavily grogged panmilled
bodies 153-1114, 153-1153 and 1541154 were amended from May 1998 to
give improved resistance to lime
popping and efflorescence problems.
These changes involve using new
refractories instead of reclaimed firebrick
as the grog source, finer processing of
certain other clay constituents and a
recipe change with 153-1114 - which is
now listed as 153-3114 Premium Craft
Crank. The fired colour may be slightly
different under certain firing conditions
and a fired trial is therefore
recommended.
Other
properties,
including their superb handbuilding
performance, remain the same.
Manufacturing Code:
*
Bodies marked P are finished by our
Panmilling technique. This gives
excellent, reliable control of grog and
water contents but is more open to
occasional contamination from larger or
extraneous particles arising in the
ingredients or during processing. It
generally produces better moisture
control in grogged bodies.
S denotes sliphoused bodies. These are
prepared in very large batches in slip
form which is finely sieved prior to or
after grog addition. The purified slip is
then pumped into presses for
dewatering prior to pugging. Sliphousing
gives greater product uniformity and
virtually guarantees freedom from
contamination. Its disadvantage is that it
is more difficult to control grog contents
(due to settling from suspension) and
moisture content. It is the best
technique for smooth textured bodies.
Plastic Blended Clays
PB denotes Plastic Blended bodies.
Our latest development here at Potclays
is the introduction of our plastic blended
range of clays. Using this process, we
are able to combine the benefits of sliphousing, for maximum purity, and lowlime wet processing, for accurate control
over grog and water additions. These
clays offer an alternative to their powder
blended equivalents at a more
competitive price.
Clay Selection
Firing Range°C Product Code Previous Code
St Thomas
Oxidising St. Thomas (PB)
Reduction St. Thomas (PB)
White St. Thomas (P)
White St. Thomas (PB)
1150-1280
1150-1275
1160-1300
1160-1300
150-1102
150-1104
150-1106
150-1506
1102,1120P,1102PB
General Stoneware
Buff Stoneware (S)
Buff School Clay (S)
Sanded Buff (S)
New Lavafleck (PB)
151-1117
151-1120
151-1124
151-1514
1117M
1120
1124
1514PB
Coloured Earthenware
New Keuper Red (S)
Keuper Sanded Red (S)
Grogged Red (PB)
Original Red S/E (S)
Red Earthenware Terracotta (S)
Sanded Red (S)
Chocolate Black (PB)
1080-1250
1080-1250
1050-1200
1050-1170
1040-1170
1040-1170
1040-1120
1150-1290
1100-1290
1100-1290
1200-1270
Smooth Throwing Stoneware
Flecked Stoneware (P)
Flecked Stoneware (PB)
Stoneware Body (PB)
Crank Clays
Ivanhoe (P)
Craft Crank (P)
Craft Crank (PB)
Premium Craft Crank (P)
Sculpture Crank (P)
Grogged Pink (P)
Industrial Crank (P)
Raku Clays
Original Raku (PB)
Coarse Raku (P)
Smooth Raku (P)
1104PB
1106
1506PB
159-1131 1131M
159-3140 1131-40M
159-1134
1134
159-1135
1135
159-1137
1137
159-3730 1137-30
159-2130
1130
1150-1290 152-1109
1150-1290 152-2109
1160-1290 152-2110
1109
1109PB
1110PB
1130-1270
1170-1300
1170-1300
1170-1300
1170-1300
1120-1270
1210-1300
1112M
1114
1114PB
1114M
1114SC
1127
1153
153-1112
153-1114
153-2114
153-3114
153-7070
153-1127
153-1153
White Grogged Stoneware
White Crank (PB)
T Material (S)
Y Material (S)
Porcelain
Casting Porcelain (S)
DL Porcelain (S)
HF Porcelain (S)
JB Porcelain (S)
Southern Ice Porcelain (S)
Cool Ice Porcelain (S)
Bone China (S)
White Stoneware
White Stoneware (P)
White Stoneware (PB)
White Special Stoneware (PB)
New White Grog Stoneware (S)
Draycott White Stoneware (S)
Modelling Clay (P)
White Earthenware
Ivory Earthenware (S)
Studio White Earthenware (S)
Grogged White (S)
Grogged White (Molochite) (S)
Semi Porcelain (S)
Paper Clay
Paper Clay (PB)
Southern Ice Paperclay (S)
Air-Hardening
Newclay
Newclay Hardener
900-1300 154-1154 1154,1154PB Gloss Finish/Sealer
900-1300 154-1156 1154C
900-1300 154-1159 1154S
SECTION 1
Suitability
General Purpose
Tiles
Throwing
Handbuilding
Slabbing
General Domestic
Large Domestic
Slip Casting
General Purpose
Tiles
Throwing
Handbuilding
Slabbing
General Domestic
Large Domestic
Slip Casting
Suitability
Firing Range°C Product Code Previous Code
1220-1300 156-0630 1106-30WBM
1200-1300 156-1161
1161
1200-1300 156-2161 1161Y
1220-1280 155-1550
1200-1300
1200-1300
1200-1300
1200-1300
1200-1300
1100-1280
1220-1290
1220-1290
1220-1290
1220-1300
1180-1230
1200-1250
1100-1180
1100-1220
1100-1240
1120-1200
1100-1230
1550
155-1147
1147
155-1149
1149
155-4000 1149JAB
155-1151
1151
155-1152
1152
155-1148
1148
157-1145
157-2145
157-1142
157-4230
157-1143
157-1150
158-2138
1138
158-1141 1141-LT25
158-4130 1141-30
158-4120 1141-S20
158-2144
1144
1100-1280 180-1190
1220-1300 180-1192
n/a
n/a
n/a
1145
1145PB
1142
1142-30
1143M
1150
165-1851
165-1853
165-1854
1190M
1192
1185-1
1185-3
1185-4
1kg Clay Samples available. Please ask for further information.
3
Earthenware & Stoneware Clay Bodies
150-1102
151-1120
151-1124
153-1127
159-2130
159-1131
159-3140
159-1134
159-1135
DISCONTINUED
159-1137
STONEWARE FIRED
EARTHENWARE FIRED
SECTION 1
PLASTIC BLENDED CLAY BODIES
150-1102
150-1104
152-2109
152-1110
153-2114
157-2145
150-1506
151-1514
159-3730
DISCONTINUED
158-2138
158-4130
158-1141
158-4120
158-2144
157-1150
4
150-1102
150-1104
150-1106
151-1117
151-1120
151-1124
151-1514
159-1131
159-3140
159-1134
152-1109
152-1110
153-1112
153-1114
153-3114
153-7070
153-1127
153-1153
154-1154
154-1156
154-1159
156-0630
156-1161
156-2161
155-1550
155-1147
155-1149
155-4000
155-1151
155-1152
155-1148
157-1145
157-1142
157-4230
157-1143
157-1150
158-2138
158-1141
158-4130
158-4120
158-2144
180-1190
1kg Clay Samples available. Please ask for further information.
180-1192
5
SECTION 1
STONEWARE FIRED
Stoneware Clay Bodies
SECTION 1
Prepared Clay Bodies
St Thomas Clays
Coloured Earthenware
Oxidising St Thomas
150-1102
Extremely popular general purpose high earthenware and
stoneware body which produces an attractive speckle under
normal or slightly reducing conditions. Both tolerant and
resilient it has good warp and crack resistance and is suitable
for throwing and slabbing.
New Keuper Red
159-1131
This high quality, smooth earthenware body has a low flux
content to improve glaze pick-up and enabling it to be used at
higher temperatures. When fired above 1200oC the body
takes on a purple tone.
Reduction St Thomas
150-1104
An attractive toasted stoneware in oxidising conditions this
body really comes into its own under reduction. The excellent
handling properties make it a popular choice for domestic
stoneware production.
White St Thomas
150-1106, 150-1506
A light grey-white colour in both oxidation and reduction
combined with outstanding handling and resilience make this
body the first choice for small and large work alike.
The 150-1506 version is particularly free of natural speckles,
and both will withstand high temperatures.
General Stoneware
Buff Stoneware
151-1117
An inexpensive fireclay based body which throws well, turns
easily, and is plastic, strong and reliable making it highly
suitable for domestic ware.
Buff School Clay
151-1120
Popular with stoneware potters as a production body for both
oxidation and reduction, this dual purpose earthenware and
stoneware clay is equally suited to use in schools. The fireclay,
ball clay and china clay blend produces a body of smooth
texture and medium shrinkage.
Sanded Buff
151-1124
A lightly sanded version of our Buff School Clay, this body has
a much greater tolerance to making methods and is an
excellent choice for school use.
New Lavafleck
151-1514
This new version of our highly flecked stoneware body is
popular for its distinctive character. Having good throwing
ability, it is now more temperature stable. Shelves need to be
well coated with refractory wash to prevent sticking during
firing.
6
Keuper Sanded Red
159-3140
Superb body for tiles, slab work, large pieces and murals alike,
this body has high resilience and good warp resistance, yet the
smooth texture allows detail to be captured.
Grogged Red
159-1134
When used at either earthenware or stoneware, this body has
good general properties, low shrinkage, and is excellent for
large pots. Firing to a terracotta colour at earthenware the
colour gradually changes with increasing temperature to a
warm toasted brown.
Original Red S/E
159-1135
Carefully graded and blended red clays and fireclays give this,
our original, terracotta body outstanding tolerance and physical
properties. It is a good domestic earthenware body which
throws and turns well.
Red Earthenware Terracotta
159-1137
This competitively priced body is a high quality blend of red
clays and fireclay which give it a good colour and high fired
strength.
Sanded Red
159-3730
Based on our 159-1137 body, a small addition of sand enables
this body to be used for larger forms and increases warp
resistance making it suitable for tile production without
detracting from the pleasant terracotta colour.
Chocolate Black
159-2130
Especially good for sculpture this competitively priced clay fires
to a chocolate black colour at earthenware temperatures and
has a fine texture.
Smooth Throwing Stoneware
Flecked Stoneware
152-1109, 152-2109
Based on a blend of ball clays, this attractively flecked body is
excellent for thrown domestic ware, large or small pieces. The
carefully graded fleck burns through covering glazes giving a
reduction fired appearance in an oxidised firing.
The 152-2109 version is similar to 152-1109 but is based on
higher purity sliphoused materials and is more attractively priced.
Stoneware Body
152-2110
This highly plastic throwing body designed for use in oxidised
and reducing conditions, is suited to thrown domestic ware
particularly where colour response is important.
Crank Clays
Ivanhoe
152-1112
This traditional formulation is superb for tiles, slab work and
murals due to its excellent warp resistance and resilience.
Although it has a high grog content, the smooth surface texture
allows detail to be captured well in the toasted colour.
Craft Crank
153-1114, 153-2114
Regarded by many as the best crank clay available, Craft
Crank is unsurpassed as a handbuilding clay. The unique
blend of fireclays and ball clays produce a pleasant toasted
colour in oxidation whilst the speckled orange-brown under
reduction is unrivalled.
higher purity sliphoused materials and is more attractively
priced.
Premium Craft Crank
153-3114
This body offers the same properties as our original Craft
Crank, but with an all ball clay base. This gives the body a
smoother clay base whilst retaining the same fired colour.
Sculpture Crank
153-7070
A variation of our Craft Crank specially formulated for larger
sculptural work. It contains slightly more coarse grog grades
than Craft Crank and has a more open texture.
Grogged Pink
153-1127
Obtained by a carefully controlled blend of Crank and red clays,
it is a general purpose handbuilding body, which fires to a
pleasant pink colour at lower temperatures and gradually
darkens as the temperature increases.
Industrial Crank
153-1153
Suitable for large sculptural work, slabbing, saggars and raku,
this body is very refractory having an open texture with low
shrinkage and good warp resistance.
Raku
Raku
154-1154
With superb thermal shock resistance and low shrinkage this
body is not only excellent for raku work, but is also highly suited
to slabbed work and is capable of firing to stoneware.
Coarse Raku
154-1156
With coarser grogs present, this body is designed for those
producing large sculptural forms which are intended for either
raku or stoneware firing. The coarse textured grogs produce a
pronounced fleck when fired to stoneware.
Smooth Raku
154-1159
Specifically designed for those who want the strength and
resistance for raku firing but in a body which can be thrown,
slabbed and coiled, it contains more medium range grogs.
Tandoori (only available by the tonne)
154-0131
Intended for industrial applications, this body is specially
designed for the production of Tandoori ovens where high
strength and excellent thermal shock resistance is required.
This very coarse body is not recommended for general use or
for sculptural items where a high selling price is anticipated.
White Crank
156-0630
White firing, this body is based on a blend of ball clay and china
clay to which is added graded molochite grogs. It is excellent
for the production of large forms, slabs and tiles, and can be
fired to stoneware as well as used for raku.
T Material
156-1161
Extremely resilient and tolerant, this off-white firing body is
superb for large sculpture and handbuilding use. Its low
thermal expansion, low shrinkage and good warp resistance
mean that it is well suited to high quality raku pieces.
Y Material
156-2161
White firing, this blend of ball clays and china clay with
molochite grogs is the ideal choice for high quality raku pieces.
Its low shrinkage and excellent warp resistance combine well to
produce an outstanding sculptural body.
Porcelain
Casting Porcelain
155-1550
Porcelain on a budget could be how this body is best
described. The off-white fired colour and semi-translucent
finish enhance the temperature and shape stability of this body,
making it ideally suited to pieces where porcelain is required
but high whiteness and translucency is not of primary concern.
DL Porcelain
155-1147
Similar to the original David Leach body, this white, translucent
porcelain is excellent for throwing.
HF Porcelain
155-1149
This truly excellent white-burning translucent porcelain
developed by Harry Fraser combines the finest quality and
value. It throws well and is consistent and reliable.
JB Porcelain
155-4000
Whiter firing than almost all other porcelains, this body offers
good throwing properties combined with high translucency and
quality at an affordable price.
Southern Ice Porcelain (LBSI)
155-1151
Developed in Australia by Les Blakebrough, this truly
outstanding porcelain is the whitest firing and most translucent
porcelain available. The unique blend of high plasticity
Australasian china clays set this body in a class of its own.
Cool Ice Porcelain
155-1152
Developed in Australia, an outstanding low temperature
translucent porcelain.
The unique blend of high plasticity
Australasian china clays set this body in a class of its own.
Bone China
155-1148
This traditional Stoke on Trent Bone China body offers users
the whitest firing clay available. Like all bone china, it is best
suited to slip casting or machine making, but with suitable
plasticiser additions it can be converted to a ‘flower making’
clay.
White Stoneware
White Stoneware
157-1145, 157-2145
This superb white stoneware body, based on carefully selected
china clays and ball clays, has just sufficient added flux to
maintain temperature stability yet provide exceptional ‘ring’.
Excellent for small and large thrown domestic ware it stand up
well even when thrown thinly.
New Draycott White Stoneware
157-1143
A white firing blend of ball clay, china clay and fireclay, to which
a small addition of molochite grog is made, produce a smooth
body suitable for throwing and modelling both small and large
domestic items for oxidised or reduction firings.
Modelling Clay
157-1150
Used by model makers for all types of projects, from original
china figure models to film special effects, this clay is the most
plastic modelling clay available.
White Earthenware
Ivory Earthenware
158-2138
A good earthenware body for slip casting of general and
domestic ware.
Studio White Earthenware
158-1141
This ball clay based, very plastic white firing earthenware is
well suited to thrown ware. It has a good green strength and
wide firing range.
Grogged White
158-4130
Based on the 158-1141 to which we add a small addition of
graded white grog, this body has exceptional handling
properties for larger items and yet can still be easily thrown.
Grogged White (Molochite)
158-4120
Graded molochite grogs are included in the 158-1141 base clay
to give a body which has excellent workability for handbuilding,
sculpture and tiles, yet still possesses a high plasticity for
throwing.
Semi Porcelain
158-2144
A white earthenware, semi-porcelain or Parian body made to a
traditional recipe which is generally suited to slip casting or
machine making. Smooth in texture but of medium plasticity.
higher purity sliphoused materials and is more attractively
priced.
Paper Clay
White Special Stoneware
157-1142, 157-4230
White firing and smooth textured, this clay throws and handles
well and is a very good body for domestic ware.
Paper Clay
180-1190
Developed in conjunction with paper clay users, this body is
based on a white stoneware to which carefully controlled
grades of inorganic fibres and binders have been added, giving
all the benefits of Paper Clay without the shelf-life problems.
The 157-4230 version contains a small amount of white sand
which provides extra shape stability for larger domestic ware
and improves the thermal shock resistance.
Southern Ice Paper Clay
180-1192
All the wonderful qualities of LBSI combined with the versatility
of paper clay.
7
SECTION 1
SECTION 1
Powdered Clays & Firebrick Grogs
Powdered Clay Bodies
1000-02 Low temperature white e-ware
Fires white to off-white from 1020 - 1180.
Good for engobing red clays, etc.
1119-2 Stoneware
A smooth, fireclay based stoneware
body, attractively priced. Light buff-grey.
Firing range 1200 - 1300oC.
1120-2 Buff body
General purpose clay suitable for
earthenware or stoneware. Firing range
1110 - 1285oC.
1130-2 Chocolate Black
See body 1130, page 6 for specification.
1140-2 White earthenware
1145-2 White stoneware
1146-1200 Porcelain
Firing range 1170 - 1220oC. Low
temperature porcelain for slipcasting.
Sieve through 60’s mesh sieve.
1149-2 H.F.Porcelain
Firing range 1220 - 1290oC. Should be
slipped through 60’s or finer to give a
strong, white translucent porcelain.
8
Air Hardening Clay etc.
1185-1 Newclay
A popular modelling clay which contains
nylon fibres which much increases the
strength when dry. Can be decorated
with non-firing stains, acrylics, tempera
colours, etc. Dry clay can be
reconstituted.
1185-3 Newclay Hardener
When dissolved in hot water and painted
on to Newclay it further increases the
strength.
1185-4 Gloss Finish
Paint on to seal pieces made with
Newclay to give a glossy finish.
Firebrick Grogs
Raw Materials
These grogs are produced by crushing
and grinding reclaimed firebricks and
other refractories under dust-extraction
conditions. This removes the ultra-fine
dust fraction and avoids the widely
varying dust content found in other
grogs. Gradings are nominal.
1242
1243
1245
1247
1248
1249
1250
5’s to dust
8’s to 20’s
20’s to 30’s
20’s to dust
30’s to dust
30’s to 85’s
85’s to dust
(3mm-dust)
(1.5mm - 0.8mm)
(0.8mm - 0.4mm)
(0.8mm - dust)
(0.4mm - dust)
(0.4mm - 0.2mm)
(0.2mm - dust)
Calcined China Clay Grogs
Used as clay substitute to lower shrinkage of
engobes etc. The coarser grades are used as
very pure white grogs.
33571 Calcined China Clay 22-60s
33572 Calcined China Clay 30-80s
1273 WAD Fireclay N6
N6 fireclay in “wad” (plastic) form. Fires
buff-grey with strong speckle at
stoneware. Tremendously plastic.
Hi-Pur Grogs
Firing to a light grey-white colour and of
exceptional purity, our Hi-Pur range
offers the ultimate in grog material.
Virtually guaranteed lime-free, this
carefully graded material allows the
coarsest of clay blends to be prepared
with complete peace of mind and with
the confidence that there will be no nasty
surprises from impurities.
1251
1252
1253
18-36
30-80
5-dust
Coloured Decorating slips
Clay-water slips for dipping and
trailing in the manner of traditional
slipware.
Compounded
from
earthenware bodies but capable of
firing to stoneware. Water may be
added or removed to alter the
consistency. Under certain conditions
dilution may be desirable to avoid
flaking.
Casting Slips
Prepared to a specific gravity of 1.7 - 1.8 (34 - 36ozs per pint). Supplied in polythene containers, these slips are
correctly deflocculated ready for use but in certain circumstances it may be desirable to thin them slightly, in which
case add just a few drops of Sodium Dispex per gallon.
Casting Slips Suitability Chart
1000-1290° 500cc or 5lt.
Suitability
General Purpose
Tiles
General Domestic
Casting Slips are produced by
adding about 0.25% - 0.5% of
1221
White
1213
Salmon Pink
1214
Yellow Ochre
deflocculant and also water to
powdered or plastic clay.
Over-addition
1215
Sky Blue
1216
Pastel Green
1217
Cobalt Blue
of
deflocculant
casts on the mould. Under-addition
1222
Green
1219
Fir Green
1218
Cocoa
1226
Brown
1224
Dark Blue
1227
Black
1225
Yellow
Product Code
1040-1140
1200-2L
1040-1140
1200-2DH
1060-1140
1200-01
1040-1120
1201
1050-1170
1202
1100-1260
1203
1100-1240
1204M
1110-1285
1205
1200-1290
1206
1220-1290
1208
1200-1250
1210
Casting Slips
is sometimes desirable but causes
Potclay White
slips
Fast Cast
to
thicken
on
standing
although they will thin again on
Low Temperature White
stirring (i.e.thixotropic).
Black
Red
1223
Medium Blue
Firing Range°C
causes cracking and sticking of
Sodium Silicate and Soda Ash are
White Earthenware
the usual deflocculants but we
Parian Semi-Porcelain
strongly
Buff Earthenware/Stoneware
recommend
Sodium
Dispex for topping-up addition and
Stoneware
slip adjustment.
Porcelain
Bone China
9
SECTION 1
Casting & Decorating Slips
Frits & Glazes
Glazes
SECTION 2
This comprehensive range of basic glazes provides the potter with proven, reliable glazes
formulated by experienced ceramists and checked by qualified teachers and studio potters.
All powdered glazes featured in these pages are classified as either low solubility or leadless.
The low solubility glazes contain lead but this is present in a fritted, ‘non-toxic’ form. Such glazes
can be safely used in schools and studio potteries since they meet the requirements not only of
the Education Memorandum 517 but also the stringent requirements of the Factory Acts. The
leadless glazes, of course, do not contain lead as a recipe ingredient and may therefore be
considered ‘extra safe’. Glazes marked * apply a thin coat only. L denotes leadless glaze. LS
denotes low solubility glaze.
2249M
2250
2251
2320-5
2320-8
2361
2370
2376
2380
Matt white zircon
Glossy tin
Glossy tin
Satin white
Opalescent white
Glossy white opaque stoneware
Frosted off-white matt tin glaze
Vellum off-white dolomite glaze
Shiny tin glaze
L
L
L
L
L
L
L
L
L
1030-1120oC
1040-1125oC
1100-1160oC
1180-1230oC
1180-1220oC
1230-1300oC
1230-1300oC
1250-1290oC
1240-1290oC
L
L
1060-1140oC
1180-1280oC
2201
White Crackle. L
(780-900°C)
Economy Glazes
Basic, low-cost glazes, popular in schools.
2290
Grey-blue earthenware glaze
2291
Mottled brown stoneware glaze
2202
Glossy general purpose leadless glaze.
L
(980-1080°C)
Frits
2203
Excellent craze resistance*.
L
(1030-1120°C)
2204
Majolica glaze. High gloss. Excellent colour response. LS
Fritting involves the melting together of glaze materials (some of which are soluble in water or
stomach acids) to produce a combination which is insoluble (or relatively so).
Lead bisilicate is the frit generally used in low solubility glazes and Standard Borax frit for
leadless glazes. The High Alkali frit will give beautiful crackle blues from copper oxide addition
and the Soft Borax will give turquoise.
For detailed analyses please ask for frit pamphlet.
Transparent Glazes
2200
Transparent Raku.
L
(780-900°C)
(960-1050°C)
2204-100M Crystal glaze. Outstanding shine and colour response. LS
(1040-1100°C)
2205
Good gloss general purpose glaze.
LS
(1040-1150°C)
2206
Glossy general purpose leadless glaze
L
(1040-1140°C)
2208
Semi-porcelain-low stoneware glaze
L
(1050-1220°C)
2209
Stoneware transparent
L
(1220-1300°C)
2209M
Stoneware transparent
L
(1220 - 1300°C)
2210
Transparent for once-firing L
(1220-1280°C)
Translucent Glazes
2230
Earthenware matt translucent*
2231
Stoneware matt translucent
2231M
Special Matt Stoneware
L
L
L
(1040-1120°C)
(1200-1280°C)
(1200-1280°C)
White Opaque Glazes
2241
Glossy white tin
2242
Delft white tin
2246LS Low sol vellum white 2246M
Vellum white matt. Satin texture
2247M
Glossy zinc titania Chinese white
2248
Glossy white zircon. General purpose glaze
L
LS
L
L
L
L
1020-1080°C
1020-1100°C
1020-1110°C
1020-1110°C
1020-1110°C
1030-1120°C
10
2261
2262
2263
2264
2265
2266
2268
2270
2275
2279
Lead Bisilicate frit
LS
Lead Sesquisilicate frit
LS
Standard Borax frit
L
Soft Borax frit
L
Slightly alkaline and gives turquoise from copper addition.
H.T.Borax frit
L
Suitable for mid temperature and stoneware glaze addition.
Ferro Crystal frit 3110
L
A very low alumina frit which assists spectacular crystal
growth in glazes. Featured in many American recipes
Calcium Borate frit
L
A fritted substitute for colemanite (new formulation).
White Zircon Borax frit
L
High Alkali frit
L
Low Expansion frit
L
Immense craze resistance and useful additive to glazes
which craze. Milkiness in large amounts.
To order only: 25kg min order
(880-1050oC)
(860-1040oC)
(900-1050oC)
(900-1050oC)
(1030-1180oC)
(1000-1100oC)
(1030-1180oC)
(960-1160oC)
(860-1060oC)
(1020-1150oC)
Coloured Glazes: Powdered & Brush-on
A range of quality glazes supplied in
powdered form requiring only an
addition of water and sieving (see
glaze preparation notes below)
The transparent coloured glazes are
especially suited for use over
decorated ware. The opaque or
speckled glazes will give particularly
good effects when double-dipped to
give varying glaze thickness and
colour tone.
For a huge range of
coloured earthenware
glazes in brush-on form
please see our Mayco and
Spectrum sections
Glazes on the following list contain a
natural flecking material which can
be coarse in nature. It is therefore
recommended that these glazes are
not sieved through a mesh finer than
40’s during preparation. Using a finer
sieve will remove some of the natural
fleck material thus changing the fired
appearance of the glaze:
2246LSM Vellum White
1020-1110oC L.
2247M Chinese White
1020-1110oC L.
2300 Rich Amber
1040-1110oC L.S
2301M Speckled Olive
1040-1110oC L.
2302 Crimson
1050-1110oC L.
2304 Victorian Burgundy
1020-1110oC L.S
2305 Tortoiseshell
1030-1110oC L.S 2306M Yellow
960-1050oC L.S
2307M Honey
1020-1110oC L.
2308 Trans. Blue
1020-1120oC L.
2309 Trans. Green
1020-1120oC L. 2310 Rockingham
1020-1120oC
2311 Pastel Green
1030-1110oC L.S. 2312 Black Matt
1020-1100oC L.
2313 Turquoise
1020-1100oC L.
DISCONTINUED
2316-01 Banana
1020 - 1080oC L.S.
2290, 2291, 2301M, 2314, 2362 (s/ware)
To order only: 25kg min order
2290 Grey Blue
1060-1140oC L.
2241 White Tin
1020-1080oC L.
2316-06 Coral Red
1020 - 1080oC L.S.
DISCONTINUED
2316-02 Toffee
1020 - 1080oC L.S.
Raku Glazes
also see 2200 Transparent
Raku and 2331 Persian
Crackle.
2250 Glossy Tin
1040-1125oC L.
2314 Speckled Cream
1040-1110oC L.S.
SECTION 2
Coloured Earthenware Glazes
2315M Shiny Black
1040-1110oC L.
DISCONTINUED
2316-03 Baby Blue
1020 - 1080oC L.S.
2317-01Holly
980-1060oC L.
2316-04 Dappled Fern
1020 - 1080oC L.
2317-02 Damson
980-1060oC L.
2316-05 Turquoise Green
1020 - 1080oC L.
2317-03 Cobalt Blue
980-1060oC L.
11
SECTION 2
Artistic Glazes: Powdered
Glaze Preparation
These notes apply to all powdered glazes whether earthenware, stoneware or
porcelain etc
Sprinkle the powder into a suitable container of water, stir, then sieve through an
80’s lawn or finer.
Leave to settle overnight and pour off surplus water.
Stir, then add water if necessary to achieve desired consistency which depends
upon porosity of biscuit ware but normally will be around 18 - 25 ozs. of dry glaze
per pint of water (800 - 1250gms per litre) i.e. about 1kg per 1.4 - 1.9 litres water.
Glaze Suspension
Settling is not normally a problem with Stoneware glazes but may be troublesome
with some earthenware or Artistic glazes, the glaze settling into a hard deposit at the
bottom of the containers which is difficult to reconstitute.
The addition of 1% of Bentonite (3411) to the glaze powder prior to preparation will
help prevent glazes from quickly settling and such addition is therefore common
practice. Even so, this may have little effect on any tendency for the glaze to set hard
once it has settled. A flocculant such as 3415 Calcium Chloride or 3442 Magnesium
Sulphate added to the glaze will, however, have the effect of causing the glaze to
settle in a more loosely packed arrangement of the constituent parts which are then
more easily reconstituted.
The method is to mix a little of the flocculant with hot water in a cup until no more
can be dissolved. Leave to cool and then add a few drops only of the liquid per litre
of glaze, followed by thorough mixing. Larger additions will cause the glaze to thicken
(this being helpful if very vitreous pieces are to be dipped).
Consistency Measurement
Once the correct glaze consistency has been achieved it should be measured so
that it can be repeated next time. Weigh exactly 100cc’s of the mixed glaze and
dividing the resultant weight in grams by 100 to obtain the specific gravity.
Alternatively one pint can be weighed to determine the ‘pint weight’.
A popular method is to use our glaze hydrometer (ref 5828 page 38) to quickly
obtain a reading which can easily be checked at each glazing session & the glaze
adjusted if necessary.
Artistic Glazes
These unusual and interesting glazes will give the results described when applied
thickly and fired on flat surfaces. Vertical surfaces and thinner deposits may give
different effects.
Glazes marked †should not be used on tableware (see page 64). The remaining
glazes are suitable for all wares.
DISCONTINUED
2327 Bright Red†
980-1070oC L.S.
2333Gemini Blue†
1000-1080oC L.S. 2338 Gold Lustre†
1000-1110oC L.S.
2348 Ivory Mottle†
960-1040oC L.S.
12
2329 Bright Yellow†
980-1070oC L.S
2335Special White
950-1250oC L.
2340 Inca†
980-1080oC L.S.
2330Pewter†
1000-1100oC L.S.
2336Cloud Nine
1020-1090oC L.S. 2341 Opalescent Ivory
1000-1100oC L. 2331 Persian Crackle
980-1060oC L.
2337Apollo
1020-1090oC L.S.
2341-03M Opalescent Green†
1020-1100oC L. To order only: 25kg min order
Reactive & Stoneware Glazes: Powdered
Stoneware Glazes - The ‘Mineral’ range
These glazes all fire in the range 1200 - 12600C and are semi-matt becoming
shinier with increasing temperature. All stoneware glazes are leadless.
SECTION 2
‘Reactive’ Glazes
Used as low temperature stoneware glazes fired at 1180 1230°C or as underglazes, being covered over with higher
temperature glazes, which then combine during stoneware
firing to give excellent combination effects.
The Reactive Slip 2394-1M similarly combines with glaze to
give varied reduction effects in electric kiln firings. It can be
applied to biscuit or leather hard pots.
2350-01
Chalcedony 2350-04
Amethyst 2320-5M
Satin White
2350-06
Jade
2350-08
Azurite 2350-09
Topaz
2320-10M
Dappled
Coffee Burgundy 2394-1M
Reactive Slip To order only: 25kg min order
2350-05
Red Granite
2350-03
Lapis Lazuli
2320-6M
Satin Blue-Beige 2350-07
Rhodonite 2320-9M
Shiny Beige
Oatmeal 2350-02
Moonstone
2394-2
Tenmoku Chun
(applied over 2394-1M) 13
Stoneware Glazes: Powdered
SECTION 2
Stoneware Glazes All glazes are leadless and pass all known safety statutes. The descriptions generally refer to results in electric kilns but
all can be fired under reduction. They fire generally in the range 1230 - 1300°C with an optimum of 1260 - 1280°C except where otherwise
indicated. Supplied in powdered form.
2209 Transparent
2352 Bright Blue
2353 Red Brown
2355 Frog Green
2356M Blue Grass
2357M Burgundy Red
2358 Chun Celadon
2361 Shiny White
2362 Yellow Brown
See P11 for advice on sieving
2363 Pale Blue
2364 Ivory Oatmeal
2365 Oatmeal
2376 Vellum Off-White
2377 Crystal Brown
2383 Marbled Blue
2385 Ivory-Oatmeal
2366 Blue Grey
2370 Frosted Off-White
2378 Vellum Blue
2379 Copper Red (Oxidised)
2386 Light Oatmeal
2388M Turquoise
2372 Tenmoku
2379 Copper Red (Reduced)
2389 Tamba
2374 Albany
2380 Shiny Tin
2391 Green Beige Crystal
2392 Bright Orange Red
Glazes for Porcelain
2395-05 Porcelain Green
14
2396-01 Barium Blue
Glazes applied over 1120 Buff Clay
2395-06 Porcelain Red
2395-01 Porcelain Trans.
2395-02 Porcelain White
2395-03 Matt White
2395-04 Porcelain Blue
Low Temperature Glazes: Brush-on
Cone 06
Unleaded
S-2102
Snow
White
S-2138
Pink
Champagne
S-2139
Floral
Pink
S-2140
Pretty ‘n
Pink
S-2130
Crystal
Coral
S-2141
Just
Peachy
S-2105
Orange
Slice
S-2142
Orange
Squash
S-2143
Rustic
Orange
S-2104
Salmon
Mousse
S-2172
Bright
Orange
S-2122
Victorian
Red
S-2168
Red Hot
Red
S-2103
Raspberry
Whip
S-2170
Bright
Red
S-2144
Clarret
S-2145
Mystic
Mauve
S-2146
Bordeaux
S-2171
Purple
S-2147
Orchid
S-2148
Lilac
S-2117
Wisteria
Purple
S-2154
Winter
Mint
S-2149
Blue
White Ice
S-2132
Sheer
Blue
S-2131
Aqua Mist
S-2150
Marine
Blue
S-2151
Blue
Lagoon
S-2115
Tahiti
Blue
S-2152
Corn Flower
Blue
S-2116
Mosaic
Blue
S-2153
Old Navy
S-2123
Royal
Teal
S-2113
Nautical
Jade
S-2114
Night Sea
S-2155
Schezuan
Green
S-2112
Pastel
Jade
S-2110
Glade
Green
S-2111
Ivy Green
S-2156
Evergreen
Fir
S-2157
Holiday
Green
S-2158
Green
Sapphire
S-2159
Pale
Yellow
S-2160
Summer
sun
S-2109
Sassy
Yellow
S-2126
Ivory
Linen
S-2107
Dry
Champagne
S-2128
Mocha
Ice
S-2161
Golden
Oak
S-2162
Saddle
Tan
S-2163
Mudpuddle
Brown
S-2118
Cocoa
Bean
S-2119
Rich
Chocolate
S-2120
Double
Fudge
S-2127
Smoked
Oyster
S-2164
Silver
Cloud
S-2165
Sooty
Grey
S-2166
Old
Smoke
S-2121
Shiny
Black
S-2565
Cloud
White
S-2566
Almond
S-2574
Tea Rose
S-2577
Wild Rose
S-2586
Bing
Cherry
S-2585
Violet
Reflections
S-2560
Queens
Blue
S-2561
Country
Blue
S-2581
Periwinkle
S-2587
Big Sky
Blue
S-2588
True Blue
S-2580
French
Blue
S-2592
Deep Teal
S-2562
Canton
Jade
S-2579
Mediterranean
Teal
S-2564
Sun
Yellow
S-2590
Intense
Yellow
S-2591
New Leaf
S-2578
Elf Green
S-2593
Jungle
Green
S-2582
Caramel
Apple
S-2589
Bear
Brown
S-2427
Fiesta
S-2421
Berry
Parfait
S-2425
Pepperwinkle
S-2424
Blue
Enamelware
S-2423
Teal
Splash
S-2422
Evergreen
Ash
S-2137
Clear Wine
Speck
S-2134
Licorice
Speck
S-2167
Holliberri
S-2133
Clear Blu
Speck
S-2136
Chocolate
Speck
S-2169
Eggnog
S-2401
Cotton
Seed
S-2402
Peppercorn
SLG-6
Cream
SLG-17
Light
Grey
SLG-2
Stone
S-2200
Marshmallow
White
S-2201
Ivory
Cream
S-2223
Soft
Yellow
S-2243
Mustard
Yellow
S-2242
Orange
S-2220
Autumn
Orange
S-2221
Pumpkin
Tart
S-2224
Coral
S-2225
Brick Red
S-2240
Scarlet
S-2226
Rose
Berry
S-2227
Parchment
Pink
S-2228
Orchid
S-2229
Violet
S-2230
Deep
Purple
S-2231
English
Blue
S-2208
Deep Sea
Blue
S-2232
Indigo
Blue
S-2233
Light
Olive
S-2234
Clover
Green
S-2235
Dark
Sage
S-2236
Tan
S-2237
Taupe
S-2218
Milk
Chocolate
S-2238
Dark Gray
S-2239
Slate
S-2209
Black
Velvet
MATTE
SPECSTONE
OPAQUE
S-2101
Natural
Clear
15
SECTION 2
Series 2000
GLOSS
Mayco Low-Fire Cone 06-04 Glazes Mayco manufacture more than 500 different glaze products in a variety of colours, finishes and textures to
inspire and stimulate your imagination. These low-temperature (cone 06-04/1000-1060C) glazes are ready mixed in brush-on form. Most colours
are available in 4 or 16fl/oz and a few are also available in US gallons.
SECTION 2
Crystalites:
Cone 06
Unleaded
S-2716
Celestial
Blue
S-2732
Sedona
S-2701
Peacock
Eyes
S-2702
Northern
Lights
S-2703
Berryberry
Pie
S-2704
Plum Jelly
S-2705
Desert
Mist
S-2706
Spiced
Banana
S-2707
Lily Jade
S-2708
Oriental
Carmel
S-2709
Cappuccino
Mint
S-2710
Evergreen
Flurry
S-2711
Tahiti
Grape
S-2712
Monsoon
Seas
S-2713
Buttercup
Blue
S-2714
Herb
Garden
S-2715
S-2717
Rocky
Road
S-2718
Cosmic
Black
S-2719
Cranberry
Burst
S-2720
Orange
Fizz
S-2721
Stars &
Specks
S-2722
Blue Chip
S-2723
Grape
Divine
S-2724
Lotus
Blossom
S-2725
Safari
S-2726
Cheetah
S-2727
Poppy
Fields
S-2728
Poinsettia
S-2729
Citrus
Splash
S-2730
Red Halo
S-2731
Kaboom
PC-501
Terra
Cotta
PC-502
Speckled
Buff
PC-503
Khaki
PC-504
Concrete
PC-505
Black
EL-106
Tidal Pool
EL-107
Amber
Ash
EL-108
Jade
Moss
EL-109
Blue
Ridge
EL-110
Mudslide
EL-201
River
Bottom
EL-202
Bark
AS-519
Green
Sappire
AS-535
Emerald
Green
Pottery
Coat:
Cone 06
Unleaded
Classic
Crackles:
Cone 06
Unleaded
CC-101
Transparent
CC-102
White
CC-103
Raw Silk
Pottery
Cascade:
Cone 06
Unleaded
CC-104
Plum
Blossom
CC-105
Orange
Pekoe
CC-106
Fuji
Brown
CC-107
Green
Tea
CC-108
China
Sea
EL-101
Oyster
Shell
EL-102
Sandstorm
EL-103
Sea
Spray
EL-104
Heather
Moor
Elements:
Cone 06
Unleaded
PC-601
Clear
Cascade
EL-111
Ruby
Creek
Spotted
Kiwi
EL-112
Tornado
Sky
PC-602
White
Cascade
EL-113
Spanish
Moss
PC-603
Amber
Cascade
EL-115
Iron Moss
PC-604
Black
Cascade
EL-116
Blue
Stone
EL-117
Waterfall
EL-118
Blue
Grotto
EL-119
Burnished
Steel
EL-120
Black Ice
EL-121
Copper
Adventurine
EL-203
Coal Dust
EL-204
Glowing
Embers
EL-205
Jade
Pebble
EL-206
Meteor
Shower
EL-207
Gold Mine
EL-208
Moss
Creek
EL-209
Night Sky
EL-210
Bayou
Rain
EL-211
Volcanic
Glow
EL-212
Molten
Rock
AS-548
Seafoam
Quartz
AS-532
Turquoise
AS-547
Ice Blue
AS-534
Blue
Sapphire
AS-531
Lapis
Blue
AS-545
Purple
Quartz
AS-513
Golden
Sand
AS-516
Sand
Stone
AS-527
Smoky
Topaz
AS-510
White
Opal
EL-105
River
Birch
EL-122
Malachite
EL-123
Patina
EL-124
Stormy
Blue
Astro Gem
Textural
Glazes:
Cone 06
Unleaded
AS-518
Amethyst
AS-515
Coral
Sand
AS-539
Gray
Quartz
AS-523
Gray
Granite
AS-512
Black
Diamond
Elements
Chunkies:
Cone 06
Unleaded
AS-524
Terra
Cotta
NB. It is not recommended to use textured or crackle glazes on surfaces intended for food or drink.
For more information on Mayco products and instructions for use please visit www.maycocolors.com
16
210901 2
Evening
Shadow
210902 2
Iceburg
210903 2
Emerald
Green
210904 1
Indian
Summer
210905 1
Wheatfield
210906 1
Burnt Sugar
210907 1
Autumn
Leaves
210919 1
Forest Moss
210920 1
Midnight
Sky
210921 1
Iron Earth
210922 1
Russet
210923 1
Hazelnut
210924 1
Slate
210925 1
Mermaid
Blush
210926 1
Lizard Skin
210908
Molten
Stone
1
210927 5
Tuscan Sun
210909
Camel
1
210911 1
Star Dust
210912 2
Cloudy Sky
210913 2
Old Copper
210914 1
Gator
210915 1
Buffalo Hide
210916 1
Leather
210918
Olive
Branch
210929 1
Mocha
210930 1
Franciscan
Gray
210931 1
Dove Gray
210932 2
Pistachio
210933 5
Strawberry
210934 2
Speckled
Turquoise
210935 1
Purple
Haze
210936 1
Tortoise
Shell
210910
Desert
1
210928 5
Oxblood
1
*
Raku Glazes Glazes marked contain lead. Tiles fired to 870OC then removed whilst glowing and reduced in newspaper.
210937 1
Speckled
Adobe
210946 2
Spotted
Cadet Blue
210955 1
Eggplant
210938 1
Blue Rain
210947 2
Spotted
Sea Green
210956 2
Smoke ‘n’
Mirrors
210939 1
Chocolate
Chip
210948 1
Tortilla
210957 1
Kelp Forest
210940 1
Spotted
Plum
210949 2
Deep Sea
210958 1
Rainforest
210941 2
210942 1
Dragonfly
Mediterranean
Blue
210950 1
Moonlit Sky
210959 2
Tarnished
Silver
210951 5
Sunset Red
210960 2
Gunmetal
210943
Glacier
1
210952 1
Meteor
Shower
210961 1
Bullfrog
Green
210944 1
Desert
Wind
210953 1
Espresso
210945 2
Robins Egg
Green
210954 2
Polished
Armour
210962 5
Phoenix
Red
For more information on Spectrum products and instructions for use please visit www.spectrumglazes.com
210850
210851
210852
210853
210854
210855
210856
Raku Clear
White
Turquoise
Cobalt Blue
Celadon
Emerald
Muddy Waters
1
1
2
2
1
2
210857
210858
Yellow
Red
4
1
210859
210860
210862
210863
210864
Flash
210861
Gator Skin
Metallic Flash
Galaxy
Nebula
Sunspot
2
2
2
2
2
2
210865
Mars
*
210866
*
4
210867
Deep Space Starry Night
2
2
4
*
1 Dinnerware safe. Contains no lead or cadmium ingredients. Certified AP Non-Toxic and conforms to ASTM D-4236.
2 Dinnerware safe. Contains some heavy metals and/or cadmium compounds but passes test for lead and cadmium release.
3 Contains no lead or cadmium ingredients. May invite bacteria growth due to glaze fissures. Not recommended for surfaces in contact
with food and drink. Certified AP Non-Toxic.
4 Contains some lead and/or cadmium compounds and does not pass test for lead and cadmium releases. Not recommended for
surfaces which come into contact with food or drink.
5 Dinnerware safe. Contains no lead. Contains encapsulated cadmium pigment. Certified AP Non-Toxic and conforms to ASTM D-4236.
Caution: None of these products should be taken internally. Contain ingredients not suitable for ingestion or inhalation.
Note: In order for glazes marked 1 2 or 5 to be dinnerware safe, they must be fired to the recommended firing temperature.
Botz Low Temperature (1020-1060C) Glazes Ready mixed in brush-on form. Distinctive and colourful effects which vary with thickness and the surface to which they are applied. These glazes meet all COSHH and CHIP safety regulations. Leadless,
but also zinc, cadmium and antimony free and so are especially safe for use in schools. Supplied in 200cc jars..
29101
White
29106
Transparent
29104
Cognac
29539
Gold
Adventurine
29343
Bottle Green
29345
Dutch Blue
29346
Antique White
29449
Sun Yellow
29456
Granite Blue
29457
Autumn
Blue-Brown
29472
Casablanca
29474
Emerald
Glimmer
29476
Cornflower
29501
Carnival
29502
Confetti
29503
Ice Flower
29506
Blue Cloud
29507
Ivy
29508
Christmas
Star
29509
Polar Night
29511
Deep Sea
29512
Wild Cherry
29515
Pansy
29517
Heather
29518
Peacock
Butterfly
29520
Waterfall
29521
Picasso Blue
29522
Blue Flower
29523
Pine Wood
29524
Green Crystal
29532
Ginster
29536
Cumulus
29538
Shiny Ochre
29539
Adventurine
29558
Pebble
29559
Cherry Red
29563
Midnight Blue
29565
Turquoise
Crystal
29569
Starry Sky
29579
Blue Black
29582
Crocodile
29589
Black
29590
Mauritius Blue
29601
Signal Red
29602
Fire Red
29603
Rose Red
29576
Copper Gold
17
SECTION 2
210900 1
Clear
SPECTRTUM GLAZES
HEALTH & SAFETY
SPECTRTUM Low Stone Glazes Unleaded • Fire to Cone 06/04 (1000-1060OC)
Spectrum Low-Fire Glazes Ready mixed in brush-on form • Wide range of colours and textures • Different glazes from the Low-Stone range can be layered to produce interesting and exciting results • Most colours available in 4 or 16 fl/oz, some also available in US gallons.
High Temperature Glazes: Brush-on
SECTION 2
Spectrum Hi-Fire Cone 4-6/Cone 9-10 Glazes
The Spectrum Hi-Fire Cone 4-6 (1170-1230OC) and Cone 9-10 ranges (1260-1290OC) are ready mixed in brush-on
form and provide a wide range of colours and textures. Different glazes from the same range can be layered to
produce interesting and exciting results. Available in 454cc (1 US pint) jars. Lead Free* and Dinnerware Safe**
1107
Black
1
1
1108
Butter Yellow
1
1
1126
1127
Satin Black
Satin Turquoise
2
1
1145
1148
Texture Autumn Texture Chowder
1109
Coral
1
1
1111
1113
1115
1117 1
2
Holly Green Texture MilknHoney Texture Moonscape Texture Chocolate
1
1110
1
Turquoise
1
1129
Texture Oasis
1
1131
Charcoal
1
2
1152
Texture Chrome
2
1153
Texture Cobalt
1151
Fuschia
1132
Purple
1
1118
White
1100
Series
Cone 4-6
1
1100
Transparent
1101
Peach
1
1
1102
Wedgwood Blue
1
1103
Dusty Rose
1106
Crimson
1
1
1
1120
Satin Clear
1
1121
Satin White
1
1122
Satin Mottle
1
1123
Satin Speckle
1
1124
Satin Wedgwood
1
1125
Satin Peach
1
1143
Texture Navy
1144
1
Texture Mottle
1
1135
Navy Blue
1
1136
Royal Blue
1137
1
Teal Blue
1
1138
Lime Green
1
1140
Texture Kiwi Fruit
1
1141
Texture Cascade
1142
1
Texture Wheat
1154
2
Texture Iron
1
1155
Pebble Stone
1
1156
Olive Stone
2
1157
Texture Honey
2
1158
Texture Bronze
2
1159
Green Stone
2
1161
Texture Topaz
2
1162
Texture Burgundy
1
1171
Texture Plum
2
1172
Texture Leopard
2
1173
Texture Hot Chowder
1
1174
Texture Rusty Scales
1175
1
Texture Dark Ripple
1
1176
Cinnamon Ripple
1
1177
Antique Mottle
1
1178
Oatmeal Mottle
1
1179
Texture Misty
3
1187
Clear Crackle
1188
Pewter
2
1189
Gold Rain
4
1190
Gold
4
2
1191
Muddy Waters
2
1192
Reactive Purple
5
1193
Fire Engine Red
5
1194
Christmas Red
5
1195
Neon Orange
1207
Turquoise
1
1208
Euro Blue
1
1209
Black
1
1220
1
Texture Agate
1221
2
Texture Oatmeal
1222
2
Cinnamon Lava
1
1134
Chocolate Brown
5
1166
Bright Orange
1
1167
Bright Green
1
1168
Bright Purple
1
1169
Dark Purple
1
1170
Texture Mulberry
1
1181
Texture Cloudburst
1
1182
Texture Jungle
1
1183
Texture Dark Cloud
1
1184
Hunter Green
1
1185
Forest Green
1
1200
Transparent
3
1201
Satin Crackle
1
1203
Satin Oyster
2
1205
Texture Avocado
1186
Soft Pink
1
1164
Dark Red
5
1165
Bright Red
5
1180
Lagoon
1
1200
Series
1196
Hot Pink
5
1
1225
Texture Honey
1244
Sky Blue
1
2
1264
Mottle Lava
18
Cone 9-10
1226
Tea
1
2
1227
Texture Emerald
1228
2
Texture Grey
1229
Blue
1
1
1230
Matte Grey
1245
Grey
1
1248
1
Matte Euro Blue
1251
Sandstone
1
1252
Slate
1
1
1253
Desert Rock
2
1265
Green Lava
1266
2
Brown Lava
1267
Gold Lava
2
1269
2
Orchid Lava
1270
Dark Red
5
1206
Coral
1
1231
1
Texture Coral
1254
Yellow
1
5
1271
Bright Red
1233
1
Matte Sand
1256
Old Rock
1234
2
Texture Seafoam
2
1257
2
Broken Rock
5
1272
Bright Orange
1273
1
Bright Green
1235
1
Texture Blue
1258
Rock Pit
2
1274
1
Bright Purple
1210
White
1215
Ruby
1
1237
1
Satin Black
1240
Light Pink
1
1259
New Rock
2
1260
2
Moon Rock
1261
2
Pebble Rock
1275
1
Dark Purple
1276
5
Fire Engine Red
1277
5
Christmas Red
1
1241
Purple
1
1242
Lilac
1243
Teal
1
1262
2
Yellow Lava
1263
Blue Lava
2
1278
5
Neon Orange
1279
Hot Pink
5
1
Please see page 17 for key to H&S numbering * except 1189, 1190 ** except 1188, 1189, 1190
Spectrum Glaze Crystals
Lead-free and dinnerware safe when fired to at least cone 06 (1000OC). These crystals are very versatile and can be used successfully up to cone 6 (1230OC). They can be used with any glaze
in this firing range to produce a great variety of different appearances and can also be intermixed. To use, sprinkle the crystals onto a wet glazed surface or mix with the glaze before brushing on.
Please be aware that, due to varying expansion coefficients, some of these crystals may cause crazing on some glazes, particularly at stoneware temperatures. Please test for suitability in your
application. Supplied in 1 oz. jars.
21CR01
21CR02
21CR03
21CR04
21CR05
21CR06
21CR07
21CR08
21CR09
21CR10
21CR11
21CR12
Cobalt Blue
White
Yellow
Dark Brown
Reactive
Green
Maroon
Reactive Blue
Reactive Green
Pewter
Gold
Clear
Brown
Crystals
on top of:
210700
Clear
210705
Black
211100
Transparent
211107
Black
19
SECTION 2
Glaze Crystals
High Temperature Glazes: Brush-on
SECTION 2
Botz Stoneware Glazes
These glazes are as safe as it is
possible for glazes to be. They are
completely ‘non-toxic’ and are
especially suited for use in education
and training establishments wherever
safety
issues
are
especially
important. However, their distinctive
and attractive fired results have made
them very popular with potters and
hobbyists both as a decorative
medium and covering glaze.
They can be used conventionally and
fired in the range 1200 - 1260°C with
a 15 - 30 minute soak or alternatively
can be used as a decoration applied
under or over other stoneware glazes.
They then act as reactive glazes to
provide interesting and sometimes
stunning combination effects.
Ready mixed in liquid form and
packed in 200 or 800cc screwtop jars.
20
29870
Transparent
29871
Rapsgelb
29872
Orange
29873
Zinnoberrot
29874
Ultramarin
29875
Kaktusgrun
29876
Weib Glanzend
29877
Schwarz Glanzend
29878
Craquele
29879
Hellblaueffekt
29880
Pazifik
29881
Tiefblau
29882
Blaugraueffekt
29883
Schwarzblaueffekt
29884
Wieselbraun
29885
Temmokubraun
29886
Créme Gesprenkelt
29887
Cremeweib
29888
Granitschwarz
29889
Indigo
29890
Turkisgranit
29891
Grungranit
29892
Salamander
29893
Graubasalt
29894
Beigegranit
29895
Sandgranit
29896
Ockergranit
29897
Lilaeffekt
29898
Eiskristall
29899
Travertin
Basic Materials
3406 Ball Clay (ESVA)
Highly plastic pale ivory burning
powdered clay excellent for use in white
bodies and in glazes. Increases
mechanical strength of bodies and
casting slips. Vitreous at 1280°C.
3401 Alumina Hydrate Used to
introduce alumina into glazes and as a
batt wash for painting onto shelves.
3407 Ball Clay (Hyplas)
Recommended for earthenware or
stoneware body formulations. Fires ivory
buff colour. Powdered. Approx 70% SiO2.
3401-02 Alumina Hydrate (granular)
A granular grade useful as placing sand.
3408 Ball Clay HV
Popular in many stoneware bodies.
3401-03 Calcined Alumina
Refractory additive for glazes, batt
washes etc.
3409 Ball Clay (Hymod AT)
High-iron ball clay.
3402 Barium Carbonate
Poisonous. A secondary flux in stone
ware and porcelain glazes used
generally to produce a vellum matt glaze
surface. Small quantities (up to 2.5 %),
are used in some clay bodies to prevent
scumming arising from soluble salts.
3411 Bentonite
Weathered and decomposed volcanic
ash. Highly colloidal material of extreme
plasticity added to glazes as a
suspending agent (up to 3% by weight,
and into clay bodies to improve plasticity
(up to 5%). High shrinkage.
3403 Basalt Lava
Volcanic lava in ground form. Melts into a
dark brown glass at stoneware temperatures
and useful as a basis for coloured and
tenmoku glazes. ‘Black Feldspar’.
3404 Batt Wash
Specially blended mixture incorporating
zircon to produce an excellent glazeresistant batt wash. Mix with water and
paint onto the kiln shelves.
3411-01 Quest White Bentonite
Used in porcelain bodies.
3412 Bone Ash
A secondary flux in glazes and
occasionally used as an opacifier. The
essential constituent used to produce
translucency in bone china bodies.
3414 Borax
Poisonous. Vigorous low-temperature
glaze flux. Slightly soluble in water and
so usually introduced into glazes in the
form of a frit.
3415 Calcium Chloride
Used as a flocculant in glazes.
(See ‘Suspension of Glazes’, in
information section on page 12).
3416 China Clay (Kaolin)
A selected white-burning residual clay of
above-average plasticity ideal for
producing white earthenware and
porcelain bodies. Also for general
purpose use in glazes and bodies.
3416-03 Grolleg china clay
3416-04 Porcelain china clay
White firing china clays of world-wide
reputation. Both are exceptionally white
yet reasonably plastic.
3418 Colemanite (Boro-Calcite)
A useful and powerful flux in pottery
glazes introducing an insoluble form of
boron with calcium.
3418-03 Gerstley Borate
2CaO 3B2O3, 5H2O.
A variety of colemanite, a naturally
occurring mineral, specially imported by
us from the USA. Mentioned in many
American text books, this is a popular
flux in studio glazes.
3419 Cornish Stone
Decomposed Granite. Used as a
secondary flux in glazes and as an
alternative to feldspar in both bodies and
glazes. Not as fusible as feldspar due to
higher silica content. Low iron content
gives good whiteness.
3420 Cristobalite
A powdered, pre-fired form of silica.
Improves craze resistance of slips and
bodies.Hazardous if inhaled.
Deflocculants See 3458-3461.
3424 Dolomite
A naturally occurring combination of
calcium and magnesium carbonates
providing a secondary flux for high
temperature porcelain and stoneware
glazes.
3424M Dolomite 150s
A very fine, slightly whiter grade.
Feldspar
Feldspar is the major flux in clay bodies
and in high temperature glazes some of
which may contain 70% or more feldspar.
Potash feldspar is the one generally
used and recommended. The term
‘potash’, ‘soda’, ‘lime’ etc. denotes the
principal but not the only flux present.
3426M Potash Feldspar (Orthoclase)
3427M Soda Feldspar (Albite)
21
SECTION 3
Technical information relevant to this
section is given at the back of this
catalogue.
Colouring oxides are listed separately
in a later section.
Basic Materials
3428 FFF Feldspar
A mixed grade of good consistency.
SECTION 3
3429 Forshammer Feldspar
A high temperature feldspar for use in
white bodies and glazes.
1273 WAD N6 Fireclay (Plastic)
Refractory clay used as an additive to
stoneware bodies to produce a more
open texture and speckling - especially
under reduction. Fires from light to warm
buff but darker under reduction.
3431M Flint
Very refractory material used to provide
silica in bodies and glazes. Increases
firing temperature and craze resistance
but reduces plasticity and shrinkage. In
dust form is hazardous if breathed in
(see ‘Safety Notes’).
3433 Glaze Binder/Hardener
Glazes for application by brushing
generally incorporate up to 5 % of binder.
Also useful in 0.5 - 2% addition to avoid
colour transference or for maiolica
painting.
Grogs - See page 8.
Also see Silica Sands in this section.
3434 Galena
A natural lead ore used in high lead raku
glazes etc. Not suitable for production
glazes.
22
3435 Gum Arabic
Used in water as a medium for
underglaze colours and in glazes as a
binder.
3436 Ilmenite, fine
Liquid Mask - see AC303
3443 Matting Agent
To give a matt finish to glazes add 5-45%
depending upon glaze and degree of
mattness required.
3437 Ilmenite, coarse
Generally ‘seeds’ recrystallisation in
titania bearing glazes, but in its coarse
form will directly produce specks in
bodies and glazes.
Media: See page 29
3438 Lepidolite
A lithium based feldspar useful as a
secondary flux in stoneware and
porcelain glazes.
3449 Nepheline Syenite
Mineral mixture of feldspar and
hornblende with little silica. More fusible
than feldspar it can be used as a
replacement to reduce the maturing
range of glazes and bodies.
Limestone. See 3470 Whiting.
3448 Mouldmaker’s Size
High quality size used in production of
plaster moulds.
glazes although not an exact replacement
for flint in clay bodies.Hazardous if
inhaled
Resist See 3469 Wax Emulsion.
3453 Pearl Ash K2CO3
Potassium Carbonate. An extremely
vigorous flux for low temperature glazes.
3454 Rutile
An ore containing titanium dioxide with
iron oxide used to produce a mottled buff
brown colour (3-8%) especially in the
presence of ilmenite. Increases opacity
of glaze. Exciting effects may be
achieved in combination with stains or
colouring oxides.
Silica See 3431M Flint and 3452 Quartz
3439 Lithium Carbonate
A good alkaline flux used as a substitute
for soda and potash when a good craze
resistance is required. Provides typical
alkaline colour response.
3441 Magnesium Carbonate
Secondary high temperature flux
producing a ‘buttery’ or satin matt surface
(up to 10%). Excess may cause crawling
and
pinholing.
Improves
craze
resistance.
3442 Magnesium Sulphate
Epsom Salts. Used to flocculate i.e. thicken
glazes to assist suspension and application
to relatively vitreous biscuit ware.
Opacifiers See 3467 Tin Oxide and
3476 Zircon. Also 3468 and 3475.
3450 Potter’s Plaster
A selected high quality superfine plaster
ideal for the production of moulds. Mixing
ratio: 5lbs plaster to 3 pints water or 100
to 78 parts by weight respectively.
3451 High Density Plaster
A harder setting dense plaster used in
the production of block and case moulds.
Mixing ratio: 6.25 lbs plaster to 3 pints
water or 100 to 60 by weight.
3452 Quartz. (Silica)
Introduces silica and alternative to flint in
Silica Sands
Used as sand-grog for clay bodies or as
placing sand.
3456-01 White Sand No. 1
Medium white sand 30’s - dust.
3456-02 Fine Sand No. 2
Light buff sand 40’s - dust.
3456-03 Buff Sand No. 3
Buff medium, 30’s - dust. An excellent
general purpose grog.
3456-04 Buff Sand No. 4
Buff coarse, 16’s-dust.
Basic Materials
3458 Soda Ash Sodium Carbonate
Used in the preparation of casting slips in
combination with sodium silicate. Its
solubility in water makes it effective as
the alkaline glaze constituent of Egyptian
Paste.
3459-01 Sodium deflocculant
A specially formulated liquid blend, easy
to use for the preparation of casting slip.
Add 200 cc 3459-1 plus 1 litre water to 10
kg clay (plastic) or 250 cc plus 3 .5 litres
water to 10 kg powdered clay.
3459-02 Sodium Dispex
An alternative to sodium silicate. Gives
improved stability and mould life. Liquid
and easy to use.
3460-075 Sodium Silicate 75tW.
3460-140 Sodium Silicate 140tW
Liquids used in preparation of casting
slips by deflocculation.
3463 Buff Stopping
A filler for cracks in buff earthenware or
stoneware biscuit. Mix with water to thick
paste.
3466 Talc
French chalk. Soapstone. Magnesium
Silicate. Secondary flux introducing
magnesium
(see
Magnesium
Carbonate 3441) and improving craze
resistance of glazes. A flux for clay
bodies -especially flameproof and low
temperature ones.
3467 Tin Oxide (Stannic Oxide)
The most reliable, oldest and most
widely used opacifier. Produces a
somewhat ‘softer’ white and is less
refractory (neutral) than zircon. 5-10%
usually added for opacification.
3468 Titanium Dioxide
A cream white opacifier often used as a
constituent of vellum white glazes.
3469 Wax Emulsion Resist
Used to paint an area of ware over which
no glaze is required, the glaze not
adhering to the resist which burns away
during firing.
3470 Whiting Chalk, Limestone
Calcium Carbonate. The main source of
calcium in glazes and extensively used
as a flux in stoneware and porcelain
glazes. Assists hardness and durability
and in large quantities produces
mattness.
3471M Wood Ash
A mixed grade (unseived) for ash glazes.
3473 Wollastonite (Calcium Silicate).
An alternative to whiting as a source of
lime in stoneware glazes. Less
dissociation and therefore useful where
pinholing is a problem.
3474 Zinc Oxide
The source of zinc and, in small
amounts, useful as a flux in middle and
high temperature glazes imparting a
wider firing range and good craze
resistance. Above 10% produces a matt
texture under slow cooling conditions.
AC303 Mask
A latex based product for application to
greenware or bisque. On bisque apply 2
coats (wet upon wet). After glazing or
decorating, the mask can be peeled off by
lifting a corner. It then peels away like any
rubbery latex substance. Better than
paper masks etc. Handy 2 ounce jar.
SECTION 3
3457 Silicon Carbide SiC
A finely ground material used as a local
reducing agent in glazes to obtain
reduced effects in oxidised (electric)
firings.
3475 Zirconium Oxide
An alternative opacifier to Zircon. 5-10% for
semi opaque, 10-15 % for fully opaque.
3476 Zircon (Zirconium Silicate)
An ultra-fine form of zircon used as an
opacifier. Add 5-8% for semi opaque and
10-15% for fully opaque glazes.
3477 Zircon
A cheaper, waterground version suitable
for batt washes, abrasion resistant matt
glazes etc.
AC306 Mender
For mending broken greenware. Moisten
greenware, apply Mender, press firmly
together and hold for a few seconds and
then remove any excess. Also used to fill
cracks in biscuit ware: soak cotton fibre
in Mender, fill in the crack and refire.
23
Oxides & Prepared Colours
Oxides
SECTION 4
The raw pigments from which prepared
colours and stains are compounded,
oxides may be painted directly onto
clay, biscuit or unfired glazed ware
(majolica), or used as stains for bodies
and glazes producing the characteristic
colours described. Further technical
data appropriate to this section is given
at the back of this catalogue.
4502 Chromium Oxide
Versatile
pigment
producing
characteristic opaque green but
producing red, khaki or yellow in
presence of zinc. Incorporation with
tin produces pink (chrome-tin pink).
4503 Cobalt Carbonate
4504 Cobalt Oxide (Black)
The most powerful ceramic pigments
giving a range of transparent blues
ranging from intense blue or blueblack in lead and lead less glazes to
a vivid blue in alkaline ones. The
carbonate form is weaker but gives
less risk of specking.
4505 Copper Carbonate
(Cupric Carbonate)
4506 Copper Oxide (Black)
(Cupric Oxide)
Transparent green under normal
neutral or oxidising firing conditions
except in alkaline glazes where
turquoise is developed deepening to
transparent Persian blue in strongly
alkaline ones. Under reduction
conditions a copper red colour is
obtained (sometimes referred to as
24
ox-blood
or
sang
de-boeuf).
Carbonate form is weaker but gives
less risk of specking.
NOTE Copper compounds must not
be incorporated into any low solubility
glaze if the resultant glaze is to be
used on domestic wares in contact
with foods. There is no problem with
copper in leadless glazes.
Ilmenite See page 21.
Iron Compounds
Iron compounds have great natural
variety and are the most popular
colouring pigments. In addition to the
characteristics detailed below, most
of them produce yellow-tan tints
(depending on quality and thickness)
in lead-tin glazes. At stoneware
temperatures black-brown tenmoku
effects are developed whilst black
and grey-greens are achieved under
reduction firing conditions.
4507 Iron Chromate
Ferric Chromate
Produces grey. Black in combination
with cobalt.
4508 Iron Oxide-black
Ferrous Oxide
4510 Iron Oxide-red
Haematite. Ferric Oxide.
4511 Iron Oxide-red synthetic
Ferric Oxide
4512 Iron Oxide - yellow ochre
Ferric Oxide. Produces browns and
honey yellows in glazes depending
upon amount. Yellow ochre weakest
but most miscible of the iron oxides.
All are good painting pigments.
4518 Vanadium Pentoxide
Generally used in combination with
tin oxide in glazes to give opaque
yellow but also directly as pigment.
4514 Manganese Carbonate
Generally produces colours obtained
from manganese dioxide but is
weaker and more finely divided.
Use of underglaze colours.
4515 Manganese Dioxide
Black, finely ground powder giving
sepia or grey-brown colour in lead
and leadless glazes with plum or
purple colour in alkaline tin ones.
With cobalt, or cobalt and iron,
produces good black. Also called
manganese oxide.
4517 Nickel Oxide
Will produce brownish greens, brown
and grey glazes but more commonly
to modify or grey the colours
obtained from other colouring oxides
by combination.
3454 Rutile
Ores containing titanium dioxide with
iron oxide used to produce a mottled
brown colour in glazes - especially in
combination with a trace of ilmenite
Excellent for modifying other stains
or oxides. Buff-brown fired colour.
3467 Tin Oxide
(Stannic Oxide). Generally used as a
white opacifier in glazes but also
useful as a white decorative pigment
- either alone or mixed with a little
transparent glaze.
All colours and stains can be fired up to
1300°C except those marked EW which
are stable up to 1140°C but change
colour tone above this. All colours in
powder form. Underglaze colours may be
applied onto clay ware (green hard), or
onto biscuit ware using our 3446 media.
Mixing of colour and media must be very
thorough and is best achieved by working
the colour into the media using a palette
knife in a rubbing or lapping action.
If sufficient flux is added, colours and
stains can be made self-glazing and matt
colours developed. Powder colours mixed
with 3446 Media provide the cheapest
and most usual way of applying
underglaze decoration.
Use of glaze & body stains.
Glaze or body stains are normally used
for the preparation of coloured glazes (5 8% addition) or coloured slips (10 - 18%
addition) followed by sieving through
120’s mesh. They can also be used in
maiolica fashion (with flux addition) and
generally as underglaze colours in which
case a small flux addition (e.g. 2263) is
also desirable.
All the above colours and stains are
manufactured to a stringent safety
specification. Nevertheless, care should
be taken to avoid them being taken in to
the body by mouth or inhalation. When
not in use ensure bottles and containers
are tightly closed.
Underglazes & Stains: Powdered
Glaze & Body Stains
4530
EW Flesh Tint
4531
EW Crimson
4532
EW Purple Damson
4591
Hi Temp Red
4560
Porcelain Pink
4562
Clover Red
4563
Lilac Tingle
4534
Ice Blue
4535
Light Blue
4536
Cornflower Blue
4592
Hi Temp Yellow
4564
Speedwell Blue
4565
Cornflower
4566
Britannia Blue
4537
Mazarine Blue
4538
Turquoise Blue
4539
Turquoise Green
4593
Hi Temp Orange
4568
Turqouise
4569
Derby Green
4570
Moss Green
4540
Emerald Green
4541
Chrome Green
4542
Victoria Green
4571
Bramley Green
4572
Spite Yellow
4573
Egg Yellow
4543
Lime Green
4544
Vivid Yellow
4545
Egg Yellow
4575
Peachbloom
4576
Honey
4577
Scorch Brown
4547
Golden Brown
4548
Chestnut
4550
Brick Red
4578
Oxtail
4579
Mid Grey
4580
Carbon Black
4551
Sepia
4552
Ivory Grey
4553
Mid Grey
4590
Hi Temp Red
4591
Hi Temp Red
4592
Hi Temp Yellow
4556
Black
4557
White
SECTION 4
Underglaze colours
4590
Hi Temp Red
4593
Hi Temp Orange
25
Underglaze Pencils, Raised Accent Colours & Superstroke Pens
Underglaze Pencils
Spectrum Raised Accent Colours
For fine line drawing, script, shading, etc. Use on biscuit ware.
After decorating, dust lightly with a soft brush to remove
excess particles then glaze (preferably with transparent L.S.
glaze) and fire. These pencils are also ideal for permanent
marking of trials. The red and yellow can be fired up to
1060°C (cone 4).All other colours can be fired up to 1300°C
(Cone 10).
Lead Free, Non Toxic
Low-Fire Cone 06/04 (1000-1060OC)
Additional Pencils not shown
4526-11 Red
4526-12 Set of 10 Pencils
(4526-1 through to -10)
4526-13 Peacock Blue
21RAC0 1
Natural
21RAC1 1
White
21RAC2 1
Grey
21RAC3 1
Black
21RAC4 1
Brown
21RAC5 1
Honey
21RAC6 1
Bright
Yellow
21RAC7 1
Lime
Green
21RAC8 1
Orange
21RAC9 1
Pink
These are slip-based colours (or engobes) which are available in 2oz. applicator pens
with a fine metal tip for decorating on greenware or bisque. They create embossed or
raised designs on ceramic decorative work because the colours do not flatten out when
they are fired. They are also available in 16oz. squeeze bottles, which can be used to
refill the pens or which can be used for slip trailing applications.
For more information on Spectrum products and instructions for use please visit:
www.spectrumglazes.com.
KEY
1 Dinnerware safe. Contains no lead or cadmium ingredients.
Certified AP Non-Toxic and conforms to ASTM D-4236
SECTION 4
21RAC10 1 21RAC11 1 21RAC12 1 21RAC13 1 21RAC14 1
Lavender Light Blue Royal Blue Turquoise
Rose
See Page 17 for more information
4526/1 Black
4526/2 Brown
21RAC15 1
Bermuda
21RAC16 1
Hunter
Green
Spectrum Superwriter Pens
Lead Free, Non Toxic, Dinnerware Safe • Low-Fire Cone 06/04 (1000-1060OC)
4526/3 Blue
4526/4 Green
These pens are a versatile new product from Spectrum containing Superstroke colours which fire to a glossy finish without a glaze. They can be
used on bisque,alone or under a glaze; on top of an unfired glaze in majolica fashion; or as an on-glaze, on top of a fired glaze.The soft squeeze
2oz. applicator pen is comfortable and easy to use. All colours are dinnerware safe and non-toxic, making them ideal for use in schools.
KEY
4526/5 Crimson
4526/7B Light
Brown
4526/9 Azure
26
4526/6 Yellow
4526/8 Lilac
4526/10 Olive
401 1
Snow
White
404 1
Banana
405 5
Fizzy
Orange
406 1
Sunshine
412 1
Wally
Walnut
415 1
Black
Velvet
423 1
Yummy
Yam
424 1
Honey
Mustard
425 1
Laser
Lime
426 1
Bowling
Green
428 1
Xmas
Green
430 1
Sherwood
Forest
432 1
Robin’s
Egg
433 1
Blue
Lagoon
436 1
Electric
Blue
437 1
Midnight
Blue
444 1
Whine
456 1
Sweet Pea
463 5
Atomic
Tangerine
465 1
Sour
Grapes
467 5
Fire Engine
Red
468 5
Xmas Red
470 5
Hot Pink
457 1
4 Leaf
Clover
1 Dinnerware safe. Contains
no lead or cadmium ingredients.
Certified AP Non-Toxic and
conforms to ASTM D-4236
5 Dinnerware safe. Contains
no lead. Contains encapsulated
cadmium pigment. Certified AP
Non-Toxic and conforms to
ASTM D-4236
See Page 17
for more information
Brush-on Underglazes
Spectrum Underglazes Lead Free, Non Toxic, Fires to Cone 06-6 (1000-1240OC)
Ready to use liquid decorating colours that have a very wide firing range from 1000°C to
1260°C. They are extra-safe in that they do not contain any lead, cadmium, barium or zinc in
their composition and they are therefore especially suitable for use in schools where they can
be considered ‘non-toxic’. The colours are very strong to give rich vibrant colour tones but they
can be thinned if necessary with water to enable delicate colour washes etc. Brushes can
simply be washed out with water. Furthermore, the colours can be intermixed to produce
intermediate tones. A major attraction is that although they are designed as fluxed underglaze
colours for application to bisque or clay ware, they can also be used in majolica tradition onto
unfired glazed ware or as an overglaze colour onto fired glazed ware. They can be used on
earthenware, redware, stoneware or porcelain and are therefore supremely versatile colouring
pigments. The fluxed nature of the colours results in them firing matt to semi-matt around
1000°C becoming slightly shinier as firing temperature increases. Available in 30ml jars.
A full palette of rich, vibrant colours that are opaque with 3 coats, semi-opaque with 2 coats and semitransparent with 1 coat. They are compatible for use under most clear glazes. Can be applied on greenware
or bisque and can be used with or without a clear glaze covering. Chart shows the unglazed colour in the
upper left half of the tile and the colour when covered by a clear gloss glaze in the lower right half of the tile.
These samples were fired at cone 05. Spectrum underglazes generally have good temperature stability up
to cone 6 and for many colours to cone 10. Please note that when fired higher than cone 04 you may get
small colour variations from those shown on the chart.
501 1
White
510 1
Tan
519 1
Chamois
4001
Egg Yellow
4002
Cobalt Blue
4003
Red Wine
4004
Black
4005
Chrome Green
4013
Lilac
4008
Neutral Grey
4014
Plum Blue
4009
White
4015
Fern Green
4010
Wood Brown
4016
Birch Green
4011
Basalt Grey
4017
Sun Yellow
503 1
Light Yellow
504 1
Yellow
505 5
Orange
511 1
512 1
513 1
514 1
Aztec Brown Walnut Brown Choc. Brown French Brown
520 1
Light Beige
521 1
Sand
522 1
Tea
506 1
507 1
508 1
Bright Yellow English Rose Baby Pink
515 1
Black
516 1
Charcoal
523 1
Honey
524 1
Mustard
525 1
Lime Green
4012
Capri Blue
4018
Salmon
529 1
530 1
531 1
Dark Olive Hunter Green Prussian Blue
532 1
Sky Blue
533 1
Turquoise
534 1
Lavender
535 1
Blue Grey
536 1
Bright Blue
543 1
Wisteria
544 1
Burgundy
545 1
Ruby
537 1
538 1
Cobalt Blue Blue Velvet
539 1
Navy Blue
540 1
Denim Blue
541 1
Purple
542 1
Fuschia
546 1
Bright Peach
548 5
Rust Red
549 1
Terra Cotta
550 5
Salmon
551 1
Medium Pink
559 1
Blue Green
560 1
Teal Blue
547 5
Nectarine
555 1
556 1
557 1
Warm Grey Light Green Leaf Green
558 1
Jade
568 5
569 5
564 1
565 1
566 1
567 5
Bright Green Bright Purple Dark Purple Fire Engine Red Christmas Red Neon Orange
4019
Whiskey Brown
4020
Mocha
4021
Blue-Green
4042
Orange
4043
Bright Red
517 1
Light Grey
509 1
Flesh
518 1
Taupe
526 1
527 1
Mid Green Sherwood Green
4006
Turquoise
528 1
Chartreuse
4007
Rosewood
502 1
Ivory
4044
Dark Red
552 1
Rose
553 1
554 1
Lilac
Royal Purple
561 5
Dark Red
562 5
563 5
Bright Red Bright Orange
570 5
Hot Pink
KEY
1 Dinnerware safe. Contains no lead or cadmium ingredients. Certified AP Non-Toxic and conforms to ASTM D-4236.
5 Dinnerware safe. Contains no lead. Contains encapsulated cadmium pigment. Certified AP Non-Toxic and conforms
to ASTM D-4236. See Page 17 for more information
27
SECTION 4
‘Unidekor’ colours
Brush-on Underglazes
Amaco Velvet Underglazes
Velvets are vibrant, semi translucent, fluxed colours
of remarkable versatility and offer three alternative
techniques:
SECTION 4
1) When left unglazed and then fired 1000C-1100C,
they give semi matt surfaces. With slightly higher
firing they assume a slight sheen. Glazing is not
essential and thus permanent decoration of finely
detailed modelling can be done without having the
detail rounded away by subsequent glazing.
2) When used in normal underglaze fashion they
can be glazed by dipping or spraying using 2205 or
other suitable glazes, or transparent brush-on glaze
can be used. The colours then intensify and give
glossy results.
3) They can be used in majolica fashion on the
unfired glaze, the flux content of the colours giving
more predictable results.
Velvets offer the advantage of taking the guess
work out of colour planning. They fire true to colour
as applied from the jar and can be intermixed to
create a palette of hundreds of shades. They
tolerate a wide firing range and can be used on
porcelain and stoneware with the exception of
orange and red. Velvets vitrify about cone 4-6. They
can be used on clay, biscuit or on the glaze and can
be applied by brushing, sponging or spraying.
4V301
Flesh
4V302
Beige
4V303
Terra Cotta
4V304
Straw
4V308
Yellow
4V309
Deep Yellow
4V310
Warm Tan
4V313
Red Brown
4V314
Chocolate
Brown
4V315
Peach
4V316
Light Pink
4V317
Medium Pink
4V318
Rose
4V320
Lavender
4V321
Lilac
4V322
Purple
4V323
Salmon
4V325
Baby Blue
4V326
Medium Blue
4V327
Turquoise Blue
4V328
Iceberg
4V332
Teale Blue
4V333
Avocado
4V334
Flaxen
4V336
Royal Blue
4V341
Blue Green
4V343
Chartreuse
4V345
Light Green
4V350
Orange
4V353
Dark Green
4V354
Leaf Green
4V355
Shadow
Green
4V356
Pearl Grey
4V360
White
4V361
Jet Black
4V366
Teddy Bear
Brown
4V367
Mist Grey
4V368
Antique Ivory
4V369
Fawn
4V370
Velour Black
4V381
Amethyst
4V382
Red
4V383
Light Red
4V384
Real Orange
Underglaze Application Methods
Brushing - Keep the brush fully loaded at all times. For solid coverage, as in back-grounds, apply 3 or 4 coats of colour, working in opposite directions with each layer of colour. Wait for water sheen to
disappear between coats.
Sponging - Pour colour onto a glazed tile. Saturate slightly dampened fine sponge with colour and lightly pat onto the greenware or
bisque; permitting first coat. to dry thoroughly before applying the next. Solid colour backgrounds can be quickly achieved with this method which eliminates the streaking that often appears when
using a brushing method.
Airbrushing - Dilute colour with water to the consistency required for a smooth spraying application. For solid colour coverage airbrush 3 to 4 coats; for shading, one coat is generally sufficient.
Antiquing - Dilute 2 parts colour with 1 part water, for an antiquing solution. Apply to bisque with as large a brush as practical. Allow to dry. Remove the colour from the raised areas with a moist sponge, rinsing
and turning the sponge often to produce clear highlights - exposing the embossed design.
28
Overglaze Colours, Lustres, Media & Accessories
The ‘Firebird’ range
Preparation of Colours
Mix thoroughly by working the colour into the
media on a very smooth surface using a
palette knife in a ‘rubbing’ action. Pick up the
required amount of colour on a brush
moistened with turpentine if the medium is
fat-oil based. Alternatively a water based
medium (such as 3444) may be used. In this
event use water to moisten and clean
brushes.
Firing Overglaze Colours
Colours and lustres are normally fired in the
range 730 - 800oC. Lower firing
temperatures will give matter finishes but
this is not recommended on the surfaces of
ware in contact with foods.
The kiln should be well ventilated (vent plug
out) until about 450 -500oC to clear away
gases from burning away of media etc. Vent
plugs can then be replaced and firing
continued to 730 - 780oC. Switch off and
leave until cool.
4626
Burgundy
4620
Pink
4621
Salmon
4623
Scarlet
4629
Royal Blue
4630
Kingfisher
4631
Lapis Blue
4632
Light Blue
4634
Chrome Green
4638
Lemon Yellow
4639
Naples Yellow
4640
Buttercup
4641
Old Gold
4649
Transp. Flux
4644
Golden Brown
4645
Sepia
4646
Grey
Lustres
Liquid metals for application to glost
ware followed by firing at 750°C
4670
Bright Gold
4672
Bright
Platinum
4677-04
Copper
4677-06
Mother of
Pearl
Media For mixing with powdered colour.
4624
Signal Red
4647
Black
4627
Damson
4635
Fir Green
4642
Orange
4628
Purple
4636
Lime Green
SECTION 4
Intermixable low-lead series. Smoothness
of application and vividly flamboyant
colours are characteristics of this series
in which the usual lead content has
been minimised thus enabling the
colours to meet low-lead release
specifications provided that they are
used conventionally and properly fired.
They are in powdered form.
4643
Red Brown
4648
White
47061 General Purpose Medium 100cc
(also available 47062 500cc)
PVA type, water based. For use with
underglazes, oxides and overglaze
colours.
47071 Turpentine (Pure) 500cc
(also available 47072 5lt)
For thinning and cleaning all media
(except 47051/52 and 47061/62).
47021 Screen Printing Medium 250gm
A thicker bodied medium specially
designed for screen printing.
47091 Marbling Solution 25gm
(also available 47092 100gm)
Apply over touch-dry gold or lustres.
Gives attractive vein craquelle effect
after firing.
47051 Underglaze Medium 100cc (also
available 47052 500cc)
Designed for underglaze colours only.
Water based.
47131 Gold Eraser
47171 Gold Fluid Writer
Has tiny reservoir to take liquid gold.
Ideal for fine line decoration & script.
47101 Pre-coated Decal Paper
(10 pack)
A special gummed paper for making
transfers. On-glaze enamels can be
painted or screened onto the paper.
When dry, the decorated area is then
brushed over with a covercoat solution.
After drying the transfer can be cut out
and placed in water for a few minutes.
The transfer film can then be slid away
from the paper and applied to the fired,
glazed ware. Smooth out the water film
under the transfer and fire to 750°C.
29
HOBBY CERAMICS at Potclays
www.potclays-ceramic-cafe.co.uk
30
Moulds To Order
Top quality plaster moulds available
to order from leading US
manufacturers. Imported once every
six weeks
Hobby Slip
Top-quality Potclays White and
Potclays FastCast earthenware
casting slip manufactured on-site to
long established recipes.
Bisque
We stock one of the largest ranges of quality
bisqueware in the UK. We are partners in
bisque with Mayco Colors USA and also
manufacture our own unique range. A
catalogue is available on request.
NEW! Hot Glass
Kilns, Hobby Kits, Glass Pens and
hands-on courses are all part of our new
venture into the world of “hot glass” for
the hobby market. You’ll be amazed at
how easy it is to achieve stunning results
with this exciting craft!
Technical Support
Sound advice is always at hand if you
need guidance on any of our
products. Just give us a call.
We especially cater for...
Ceramic Cafés
Paint-your-own-Pottery Studios
Contemporary Studios
Contact us for details of our special
pricing structures.
Schools and Colleges
We offer special discount structures
on some of our products for schools
and colleges. Please ask us for more
information.
Courses, Seminars and Training
Training courses are held throughout the
year, including an international course in
conjunction with Mayco Colors USA, in
addition to our frequent seasonal oneday classes. One-to-one intensive
training available by special
arrangement.
Non-fired Products
We stock a huge
assortment of non-fired
products including
acrylics, glitters (both brush-on and
spray), sponge shapes, brushes,
turntables, beads and so much more.
Let your imagination run riot!
To find out more,
please call:
01782 219816
or email us:
sales@potclays.co.uk
We’d be happy to send you
an information pack.
Brushes from Royal & Langnickel
144 different brushes in 6 hair categories. Ergonomically designed with thick acrylic handles and a soft, no slip, rubber grip.
RSG150
(6 sizes)
Golden Taklon
Shader
RSG155
(6 sizes)
Golden Taklon
Short Shader
RSG160
(4 sizes)
Golden Taklon
Angular
RSG170
(4 sizes)
Golden Taklon
Filbert
RSG190
(2 sizes)
Golden Taklon
Dagger
RSG250
(13 sizes)
Golden Taklon
Round
RSG393
(3 sizes)
Fitch
Deerfoot
RSG585
(5 sizes)
Golden Taklon
Script Liner
RSG595
(6 sizes)
Golden Taklon
Short Liner
RSG650
(3 sizes)
Golden Taklon
Deerfoot
RSG700
(2 sizes)
Golden Taklon
Glaze Wash
RSG711
(3 sizes)
Golden Taklon
Stroke
RSG725
(3 sizes)
Ox Hair
Wash
RSG730
(3 sizes)
Golden Taklon
Comb
RSG750
(3 sizes)
Bristle
Glaze
RSG825
(3 sizes)
Bristle
Fan
RSG850
(4 sizes)
Golden Taklon
Fan
RSG930
(3 sizes)
Golden Taklon
Filbert Comb
RSG995
(2 sizes)
Sabeline
Mini Mop
RSG999
(1 size)
Mini
Mop
RSG1150
(5 sizes)
Pure Sable
Shader
RSG1160
(3 sizes)
Pure Sable
Angular
RSG1170
(3 sizes)
Pure Sable
Filbert
RSG1250
(7 sizes)
Pure Sable
Round Detail
RSG1325
(4 sizes)
Bristle
Round
RSG1400
(3 sizes)
White Blending
Mop
RSG1425
(4 sizes)
Bristle
Bright
RSG1460
(4 sizes)
Bristle
Foliage
RSG3000
(4 sizes)
Combo
Round
RSG3010
(5 sizes)
Combo
Bright
RSG3020
(3 sizes)
Combo
Filbert
RSG4000
(3 sizes)
White Nylon
Round
RSG4010
(5 sizes)
White Nylon
Bright
RSG4020
(6 sizes)
White Nylon
Filbert
RSG4090
(2 sizes)
White Nylon
Flat
SECTION 5
RSG255
(4 sizes)
Golden Taklon
Short Round
See over for size chart
31
Brushes from Royal & Langnickel
Brush Size Chart
SECTION 5
0
RSG150
RSG155
RSG160
RSG170
RSG190
RSG250
RSG255
RSG393
RSG585
RSG595
RSG650
RSG700
RSG711
RSG725
RSG730
RSG750
RSG825
RSG850
RSG930
RSG995
RSG999
RSG1150
RSG1160
RSG1170
RSG1250
RSG1325
RSG1400
RSG1425
RSG1460
RSG3000
RSG3010
RSG3020
RSG4000
RSG4010
RSG4020
RSG4090
32
1
2
3
4
5
6
8
10 12
1/8 1/4 3/8 1/2 3/4 S
Brush Sets
M
Great value sets featuring a variety of different brush shapes
and sizes. Ideal for schools, colleges and other educational
establishments.
3/0 5/0 10/0 20/0
As pictured
RCOMBO144T Set of 144 Brushes (wood handle)
RCOMBO144B Set of 144 Brushes
Taklon
Bristle
Also available
RSG-12 Quality Set of 12 Soft Grips w/Brush Roll
RSET-TK-C Set of 4 Assorted (wood handle)
RSET-TK-M Set of 5 Pointed Rounds (wood handle)
RSVP-5 Value Pack Set of 10 Brushes (wood handle)
RSVP-7 Value Pack Set of 10 Brushes (wood handle)
RCAN-1 Economy Set of 144 Rounds (wood handle)
mixed
Taklon
Taklon
Bristle
Taklon
ass’td
Big Kids Choice Brushes
A large range of brushes and accessory products
designed with young children in mind. The Big
Kids Choice range is bright and colourful, with a
comfortable soft grip and short handles ideally
suited to little hands.
As pictured
RBKCOMBO72
RBKRND72
RBKFLAT72
Assorted Set
Round Set
Flat Set
RBKAPRON1
Clear PVC Child’s Apron - sml
RBKAPRON2
Clear PVC Child’s Apron - lge
Airbrushing Equipment
5750-350-2
5750-250-2
SECTION 5
Badger specialist airbrushing and
spraying equipment is used by
professionals worldwide. This selected
range of their equipment enables
accurate and delicately detailed or
shaded work to be done with ease.
Accessories
5750-250-2 Mini Spray gun set
A simple, single action external mix
model suitable for fast coverage of larger
areas. This tool has a spray pattern
which is adjustable from 18mm to 50mm
by turning the paint tip at the front of the
gun. Supplied with attached 22cc (34oz) jar, propel regulator valve,
1.8metres (6ft) vinyl air hose, extra 22cc
jar, with cover & instruction booklet.
Sprays glazes or colours for base
coating, shading, highlighting, stencilling
etc.
5750-200-3
5750-250-3
5750-200-3 Airbrush (200 Series) set
An excellent, single action, internal mix
airbrush supplied complete with 22cc (34oz) jar, protective cap, 1.8 metres (6ft)
vinyl air hose, jar of propellant, propel
regulator, spanner, and instructions &
storage case. Can be used with 7cc
5754-01 Micon Air Compressor
Diaphragm compressor compatible with
all makes of airbrush 1/6hp, 160 watts,
2.5-55 cfm output.
5755-20 Propellant
A 567cc (20oz) canister.
5755-22 Propellant Regulator
Enables finer adjustment of spray
patterns.
5750-250-3 Spray gun set
Consists of Mini Spray gun with attached
22cc (3-4oz) jar, propel regulator valve,
1.83m (6 feet) vinyl air hose, extra 3-4oz
jar with cover, propel can and
instructions.
5750-350-2 Airbrush (350 series) set
A single action, simply constructed
external mix medium tip airbrush
supplied with propellant can, attachable
22cc (3-4oz) jar, 1.8metres (6ft) vinyl air
hose, 60cc (2oz) jar with cover, propel
regulator, spanner & instruction booklet
Gives 6mm to 30mm spray. Ideal for
underglaze or overglaze work.
colour cup or 2oz ounce or 3/4 jars.
Incorporates needle adjuster for more or
less colour. Gives 1.5mm to 38mm spray
Ideal for all colours and detailed glaze
work. Internal mix produces more
uniform spray pattern with a softer
appearance.
5754-1
Jars & Jar Adaptors
You will need several jars with lids and 2
or 3 adaptors.
5756-02 60cc (2oz) jar with lid.
5756-04 22cc (3/4oz) jar with lid.
5756-05 Jar adaptor (200 & 250 Series).
5756-06 Jar adaptor (350 Series).
5756-08 Filter Fits in the colour jar.
Helps avoid blockages.
5755-20
5757-01 Air Hose (Vinyl)
1.9m (6") lightweight air hose. Not
suitable for use with compressor.
5757-02 Air Hose (Braided)
A heavy duty hose suitable for
compressor attachment. 3m (10’) long
with swivel connection each end, one
end for brush other end 1/4" female for
attachment to 5757-4.
5757-04 Hose Adaptor
A 6.4mm (1/4") adaptor for fitting air
hose to compressor.
5757-2
33
SECTION 5
Badger Airbrushing Equipment
Painting Accessories & Whirlers
5777-1 Biscuit Tile (6 x 6")
(Not shown)
5778 Gold Fluid Writer
Has tiny reservoir to hold gold or liquid
on-glaze colour for fine line decoration,
script etc.
Whirlers
5778
DISCONTINUED
SECTION 5
Palette Knives
Quality hand ground carbon steel with
polished rosewood handles.
5784-02
5784-04
5784-06
5784-08
5784-10
63mm
100mm
150mm
200mm
250mm
Whirlers are metal turntables
which prove useful in a variety
of ways in the manufacture and
decoration of pottery. All the
whirlers
listed have steel
spindles running freely in brass
oilite bearings except 5795
which has ball bearings.
5786
5784-02
(2.5") blade
(4") tapered blade
(6") blade
(8") blade
(10") blade
5786 Wipe Out Tool
Specially shaped rubber ‘wiper’ at each
end enables painted edges to be levelled
or cut back when using overglaze
colours etc.
5784-04
5790 Aluminium Whirler
203mm dia. x 76mm high
(8" x 3" high) Weight 1.8kgs
5784-06
5791 Aluminium Whirler
(8" x 6" high) Weight 2.7kgs
5793-01 Steel Whirler
8" dia. x 4.5" high
15" dia. x 6" high
5784-08
5784-10
17" dia. x 6" high. Much
heavier and has greater momentum than
alloy whirlers.
5798
5793-02 Cork Faced Whirler
As 5793-1 but the steel top is finished
with a cork face.
5793-03 9"x 6" Whirler
5793-04 12"x 6" Whirler
5784-03 Palette Knife 90mm
5792-02 Iron Whirler 8x2”
5792-01 Iron Whirler 10x2”
5794-02 Steel Whirler 7x4”
34
5794-01 Steel Whirler 11.75x5”
5795 Heavy Whirler
(12" dia x 4" high) Weight 16.4kgs.
5798 Lining Wheel
Adjustable for convenient height to
enable work to be set at exactly the right
position. Made from steel and aluminium.
Runs on steel pivot with oilite bushes for
very free running. Rubber sleeve fitted to
stem. Base has adjustable feet. Finished
in hammer black with cork top on the 10"
dia. wheel head.
Height: 26" - 32" adjustable.
Weight: 10.5 kgs
Modelling Tools
Wire Modelling Tools
5804
203 mm (8") Twisted wire ends to give
textured effect.
Boxwood Modelling Tools
Beautifully finished hand made tools used for
modelling and decoration of clay in its plastic state.
Each tool is approximately 152mm (6") long.
5807-22 Fine Texture Tool
5807-21 Coarse Texture Tool
5767-03 Mop 10x30mm
5767-02 Mop 10x27mm
5767-01 Mop 6mm
5805-S2 6” Boxwood Set (6pcs)
5805-04
5805-05
5805-06
5805-07
5805-08
5805-09
5805-10
5805-Set
Flat curve and serrated edge
Chisel edge and large radial
Medium radial and serrated angle
Chisel edge and curved angle
Point and medium radial
Point and straight angle
Curve and long serrated edge
Set of 1 each
SECTION 5
5807-03 Throwing Knife 65mm
5805-04
5805-05
5805-06
5806-S2 Plaster Tool Set (8pcs)
5806-S1 Stainless Steel Set (7pcs)
5805-07
5829-02 5” Mini Steel Set (6pcs)
5805-08
5805-09
5804
5829-03 Tool Kit (7pcs)
5829-04 Tool Kit (11pcs)
5805-10
5829-01 Pottery Tool Kit (8pcs)
35
Modelling Tools
Forged Steel Modelling Tools
Expertly designed and popular double ended tools used for shaping and carving clay or plaster surfaces.
SECTION 5
Ref. No 5806 followed by -F number as
below: e.g. 5806-F01.
F0l Curved and spear shaped ends with
coarse teeth for cutting and removal
of material
F02 Sturdy
splayed
and
screwdriver
shaped ends.
F03 Oval with slight upturn and slanted
palette ends
F04 Spear shaped, with slight upturn, and
curved end, with fine and coarsely
serrated teeth.
F05 Fine and coarsely serrated edges with
smooth and sharp opposite end.
F06 Sharp edged and coarse toothed ends.
F07 Oval and wide palette ends. Slight upturn
on each with a flexibility ideal for
smoothing and filling.
F08 Sturdy
spatula
and
screwdriver
shaped ends.
F09 Finely serrated and curved ends for
intricate work.
F10 Coarse and fine toothed with sturdy,
rounded ends
F11 Small spatula and needlepoint end.
F12 Blunt point and ball end.
F13 A sturdy tool rounded on one end and flat
on the reverse side, with a wide splayed
opposite end.
F14 Large and small smoothly shaped ends.
F15 Shaped ends with finely serrated edges.
F16 Arrowhead and small screwdriver
shaped ends.
F17 Large sturdy double ended tool with
90o bends.
F18 Small sturdy double ended tool with
90o bends.
Fl9 Rigid smoothing and filling tool.
F20 Large and small hooked ends, finely
serrated on opposite edges.
F21 Small round, curved ends.
F22 Half round with flat reverse side double
ended tool.
F23 Smooth rigid and rounded tool with one
flat side and fine point and edges
36
F01
F02
F03
F04
F05
F06
F07
F08
F09
F10
F11
5807-01 Potter’s Knife
A general purpose knife for cutting, fettling etc.
Sturdy 54 mm (2.1") blade shaped to a point.
5807-04 Kemper Cut-out Tool, 4.5"
5807-05 Cut-out Tool Heavy Duty, 5.75"
Used to cut openings and pierced design
work in leather hard clayware. The 4.5" is for
thin walled delicate work, the 5.75" for heavier
work. Both are double edged for reverse cuts
and sharp turns.
5807-07 Kemper Clean-up Tool
6" High quality stainless steel blades with
double-edged keenly sharpened cutting edges.
F12
F13
F14
F15
F16
F17
F18
F19
F20
F21
F22
F23
5807-08 Salt & Pepper Drill
For small holes in greenware.
5807-10 Kemper Clean-up Brush 6.7"
For cleaning small holes, delicate handles.
5807-11 Sgrafitto Tool
5807-12 Fork Sgraffito Tool
Fine twin line point, and spear shaped ends.
5807-13 Sgraffito Tool with Brush
5807-15 Lace Tool
5807-18
5807-01
5807-10
5807-04
5807-11
5807-05
5807-12
5807-07
5807-13
5807-08
5807-15
5807-17 Plastic Knife
5807-17
5807-19
5807-18 Lucy Tool
For cleaning clay from mould surfaces and
working on greenware.
5807-19 Greenware Seamline Cleaner
Spring steel cutting head set in a durable
plastic handle for removing seam lines and
other raised blemishes.
Modelling Tools
5807-20 Double Tip Texture Roller
For applying a roughened texture.
Needles
Two gauges of needle are available, both set
into wooden handles. The fine gauge is used
for trimming pot rims and the heavier gauge
for pierced and sgraffito work.
5813-01 Fine
5813-02 Thick
5808-01, -02, -03 Turning Tools
Ground spring steel blade, stainless steel
shaft and beech wood handles.
5810 Hole Cutters
Ideal for producing holes in lamp bases,
teapots, etc., and general decoration. The
blade is half round to prevent clogging and is
set in a wooden handle.
Round:
5810-01
5810-02
5810-03
5810-04
5808-02
5808-01
5810-03
5808-03
5809-01
5810-02
5809-03
5809-04
5810-05
5810-01
5810-04
5809-02
5810-06
5819-3RWN
5810-07
5816 Twisted Wire Cutter
Twisted wire producing shell ridging or
whirl pattern when the pot is cut from the
wheel or modelling board. 330mm (13") long.
Hardwood toggles.
5810-08
5mm (3/16")
8mm (5/16")
13mm (1/2")
3mm (1/8") to 6mm (1/4") tapered
Clay Cutters
Nylon with hardwood toggles:
5815-01 303 mm (12") cutter
5815-02 455 mm (18") cutter
5807-20
5816-01 Kemper Wire Cutter
5816-02 Stainless Steel Cutter
457mm (18") stainless steel wire giving
smooth cut. Hardwood toggles.
Square:
5810-05 2.4mm (3/32")
5810-06 3mm (1/8")
5810-07 5mm (3/15")
5810-08 6mm (1/4")
5817 Bow Trimmer
Used for trimming clay, especially in pressed
and slab work. Fine wire 44mm (1.75")
effective width.
5811 Strip Tools
Designed for fine and medium cutting,
turning, trimming and carving work these
tools have sharp, ground steel cutting edges
and coiled wire ferrules. Two sizes: 6" & 8"
5812 Coilers
Made from hardened spring steel with
cutting edge. Produce coils quickly and
easily. Also useful for turning and creating a
fluted decoration.
5812-01 13mm (1/2") dia.
5812-03 21 mm (3/4") dia.
5819N Bow Harp
Enables a stack of slabs to be cut from a
single block of clay by repeatedly
repositioning the wire in the next higher
groove after the bow has been drawn through
the clay. 380 mm (15") effective width with 3/8"
pitch. Complete with rings and 23 gauge s.s.
wire.
5819-3RWN Replacement wire for 5819N.
5817
5811-013
5811-014
5811-018
5811-015
5811-016
5819N
5816-01
5811-6
5812-03
5812-01
5816
5816-02
5813-02
5803-01 8” Ribbon Tool
5803-04 8” Wire Tool
5803-02 6” Wire Tool
5812-04 Loop Tool LT7
5813-01
5818-01 7” Heavy Duty Tool
5831 7” Sculpture Tool
Set (3pcs)
37
SECTION 5
5809-01, -02, -03, -04 Turning Tools
Stainless
blade.
polished
handles
16mm (5/8") cutting face.
Modelling Tools
Rolling Pins
5820 Small Rolling Pin (not shown)
355 x 48 mm (14" long x 1.875")
5820-02 Large Rolling Pin
510 x 18 mm long (20" long x 1.875")
5823-07
5823-03
5821-01
5830-05
5830-00
5821-01 Hessian Squares
For rolling or pressing operations.
5830-02
5824-04
Rolling Guides (Wood) (not shown)
5822-01 Pair 1 1/4" x 1/4" x 18"
5822-02 Pair 1" x 3/8" x 18"
SECTION 5
5830-03
Tile Cutters
For quick and accurate production of tiles by
pressing in a slab of clay. Simple ejection by
pressing the sprung rod.
5823-01 28 mm (1/8") square cutter
5823-02 108 mm (41/4") square cutter
5823-03 82 mm (31/4") hexagon cutter
5823-05 100 mm x 50 mm rectangular cutter
5823-06 152 mm square cutter
5823-07 101 mm round cutter
5823-10 Mini leaf cutters
5823-12 Mini round cutters
Rubber Kidney Palettes
For smoothing plastic clay surfaces, in press
moulding and as a ‘squeegee’.
5824-01 100 x 55 x 6mm
5824-04 122 x 57 x 6 mm
5824-06 138 x 64 x 8 mm
Steel Palettes
Ideal for smooth and trimming leather-hard clay
and plaster and the serrated palette for rapid
shaping or texturing of leather hard clay. Two
thicknesses: ‘Very flexible’ and ‘Flexible’,
respectively VF and F.
5825-01 90 x 45 mm Kidney (VF & F)
5825-02 102 x 45 mm Kidney (VF & F)
5825-03 125 x 51 mm Rectangular (VF & F)
5825-04 95 x 45 mm Serrated Kidney (F)
38
5824-01
5830-01
5824-06
5825-02
5825-04
5830-04
5825-01
5827 Klay Gun
An extremely useful tool for forcing soft clay
through various shaped openings in an
assortment of interchangeable disc dies. The
extruded clay shapes can be used for an
almost limitless number of decorative effects
such as hair, grass, flower stems, ropes, logs,
bricks, vines and decorative edges and
mouldings. The Klay gun is furnished with a
set of 19 discs that are formed to allow flush
cut off of the extruded clay.
It is constructed of sturdy die-cast zinc alloy
and is simple to use and clean.
5830-06
5825-03
5828 Glaze Hydrometer
Floats in glaze like a fishing float. Invaluable
to enable easy repetition of optimum glaze
consistency from one batch to another.
5826-02
DISCONTINUED
5826-10
5827
5826-08
5826-01
Throwing Ribs
5826-01 Angle-Curve 10cm
5826-02 Stick with hook 30cm
5826-03 Convex-Oval 11cm
5826-04 Flat-Concave 10cm
5826-05 Flat-Rectangle 10cm
5826-06 Flat-Curve 8cm
5826-07 Flat-curve 14cm
5826-08 Large Throwing Rib
5826-07
5826-03
5826-04
5826-05
5826-06
5828
Sponges
5830-00 Small, Natural, Fine Texture
5830-01 Medium, Natural, Fine Texture
5830-02 Medium, Natural, Coarse Texture
5830-03 Medium, Synthetic, Fine Texture
5830-04 Large Synthetic Bench Sponge
5830-05 Sponge on stick (small)
5830-06 Sponge on stick (large)
5829 Tool Kit (not shown)
Contains sponge, throwing rib, strip tool, double
ended wire tool, heavy duty needle, wooden
knife, steel kidney, stainless steel wire cutter.
Attractively packaged.
Modelling Tools
Plastic Cruet Stoppers
Still Available
CORKS
DISCONTINUED
5840
5839
Strong, lightweight sieves with best quality stainless
steel mesh and beechwood frame
Mesh
203mm
254mm
size
(8" dia.)
(l0"dia.)
20
5851-08
5851-10
30
5852-08
5852-10
40
5853-08
5853-10
60
5854-08
5854-10
80
5855-08
5855-10
100
5956-08
5856-10
120
5857-08
5857-10
200
5858-08
5858-10
Cup Lawns Small lawns approx. 76 mm (3") dia.
Ideal for sieving colours etc.
5856-03 100’s mesh.
5858-03 200’s mesh
5850
5841
5849-02
5851-05 Slip Sieve Flat shape sieve for small
quantities of slip or glaze.
(Rotary Glaze Sieve see 7065)
5842
5850 Dipping Tongs, 10" Dipping tongs are used to dip ceramic pieces directly
into the glaze. They are made from heavy steel and feature four sharp gripping
points that make minimal contact with the pieces being dipped.
Sieves (Lawns)
5842-04
Calipers 5844-08 203 mm (8") 5844-02 305 mm (12")
Cruet Stoppers Plastic, shallow collar.
5846-01 To fit 7/16" dia. hole. 5846-02 To fit 3/4" dia. hole.
5849-07
5843
Wooden Taps 5848-01 4" (sherry) small - medium
5836
s
5844-08
Letter and Number Stamps for impressing
5848-01
7065
5844-08W Wooden Calipers 17cm
5844-07W Wooden Calipers 7”
5856-03
5851-05
5838 Sliptrailer Bulb (60cc)
5838-1 Sliptrailer Bulb Set
into clay. Can be used for a wide variety of purposes:
Particularly useful for marking clay/glaze trials,
stamping a piece with the maker’s initials, lettering
on commemorative dishes etc. Made from alloy tool
steel, hardened and tempered with a black finish
and packed in a plastic box. Letter sets incorporate
all 26 letters of the alphabet plus an ampersand (&).
Number sets incorporate numbers 0-9.
5834-01
5834-02
5834-03
5834-04
1/4” letter
1/8” letter
1/4” number
1/8” number
39
SECTION 5
5835 Printing Sticks A set of 15 wooden printing sticks, one end of each
being shaped to give distinctive design (square, diamond, circles, ovals, etc.)
when pressed into clay.
5836 Mortar and Pestle Porcelain. For hand grinding raw materials and colour.
5839 Slip Trailer Rounded bulb 115cc (4oz.) capacity having detachable nozzle
with 1.6mm (1/16") hole.
5840 Slip Trailer Plastic bulb 115cc (4oz.) capacity having detachable nozzle.
Cut to hole size.
5841 Djanting Needle A ‘pen’ used for trailing slop glaze or decorative colour.
5842 Abrasive Block Sintered Alumina. Useful for tool sharpening, cleaning
used kiln shelves etc.
5842-04 Glaze & Bisque Cutter Tungsten carbide coated steel rod in wood
handle. 6" length. Ideal for widening holes in fired ware.
5843 Sorting Tool 12mm hardend steel chisel edge for dressing kiln furniture and
pots after firing.
Cane Handles Prepared handles formed for immediate use.
5849-02 4" round
5849-07 4" Square
5849-04 5.5" round
5849-08 5" Square
5849-06 6" round
5849-09 6" Square
Scales, Trolleys & Tongs
5866-01 Sack Truck
Scales, Trolleys, Tongs
5860-01 Electronic Bench Scales
Strong, stainless steel 275 x 310 mm platform.
Digital indication. 20kg capacity x 10 gram. Builtin rechargeable battery pack & AC adaptor.
Simple, one button operation.
5862
5861
5868-01 Adjustable Bin Trolley
Adjustable to fit all bins including ultra large
galvanised type. 483mm (19") dia.
5860-02 Electronic Balance
Weigh up to 200gm in 0.1gm increments.
Adhesive Felt
5879-01 Adhesive Circles 1" Dia
5879-02 Adhesive sheet 18" x 6"
Weigh up to 2kg in 1.0gm increments.
SECTION 5
Weigh up to 5kg in 2gm increments.
5861 Triple Beam Balance
Classic precision weighing instrument accurate
to 0. 1gm. Complete with weight set (2 x
1000gm, 1 x 500gm) to give 2610gm weighing
capacity.
5860-02
5863
5860-01
5862 School Balance (with weight set)
Beam and base in die cast aluminium. Sensitive
to 0.5gram with capacity of 2000 grams. Built in
damping mechanism to reduce oscillation for
speedy weighings. Durable and rust free. 8 piece
brass weight set includes l x lgm, 2 x 2gm,
1 x 5gm, 2 x l0gm, 1 x 20gm and 1 x 50gm.
8250-01
5865
Clock Movements and Thermometers
5875 Clock Movements
Battery powered clock movement & hands.
4 designs.
5875-01
5865 Folding Trolley
A very inexpensive general purpose trolley which
provides outstanding value for the safe and easy
transport of bins, sacks and parcels. Hinged
platform and retractable handle. Weight 4 kgs.
(8.5 lbs.) Folded size 914 x 330 mm (36" x 13")
40
Raku Tongs
8250-01 914mm (36") Long x 203mm (8") jaws.
Tubular steel handles, strip steel jaws.
8250-02 825mm (32") long x 205mm (8") open.
Lightweight but strong alloy with hard steel
gripping points
8250-03 1041mm (41") long x 228mm (9") open.
Alloy without steel gripping points.
Note: we feel that people should be sensibly
attired when Raku firing using tongs. This
includes leg protection and sensible shoes.
5866-01
5863 Gram Scales
The perfect, inexpensive answer to weighing
minute quantities of stains, oxides, etc.
Weighs up to 50 gms in 1gm divisions. No
weights necessary.
5865-01 Spare Third Wheel
Converts 5865 into a three-wheel trolley which is
ideal for carrying bundles and mixed loads.
5868 Bin Dolley
Put your clay bins on castors! Fits all standard
bins and is an excellent aid for schools and
studios. Weight 4kgs Ring dia. 381mm (15")
5876
Thermometer Kit
An individual wallmounting
thermometer can
easily be made
with this kit.
Includes hands
and calibration
scale for
thermometer face.
8250-03
5868
8250-02
5865-01
5868-01
5875-03
5875-02
5875-04
Protective Clothing & Plasticware
Protective Clothing
6900-01
6898-02M
6896-01 Apron Small ( suitable for children)
610 x 460 mm wide (24" long x 18")
6896-02 Apron Large
915 x 610 mm wide (36" long x 24")
6900-2
6899-03
General Purpose Bowls
The larger sizes are particularly suitable
for dipping plates and flat ware.
6872 Round Bowl 254 mm (10") die
6873 Round Bowl 355 x 20 mm deep
(14" dia. x 4 3/4")
6877 Bin
72 litres (16 gallons) 16" dia. x 21" deep with
twistlock lid and two handles. Holds 100kgs clay.
5868 Bin dolley - See page 40
DISCONTINUED
6898-2MRC
Buckets
6897 Teacher’s Coat
‘Raincoat’ style. In white terylene.
Sizes 36", 38", 40", 42" and 44"
Complete with securely fitting lid and
metal carrying handle, their design allows
secure stacking to occupy minimum floor
space. Useful for storing glaze and slip.
6885-01 Bucket 9 litres (2 gallon) + lid.
6885-02 Bucket 9 litres (2 gallon) no lid.
6886
Bucket 13.5 litres (3 gallons) + lid.
6887
Bin
23 litres (5 gallons) + lid.
6899
6899-05
6899-03 Kevlar Mitt
Heat resistant. Reversible: for either hand.
6887
6899-05 Kevlar Gauntlet Mitt
Reversible. 13" long.
Storage Bottles
6886
6885
6898-02M Respirator
High efficiency respirator conforming to BS
2091 and all H & S requirements. inc. Raku.
Complete with filter cartridge. Spare
cartridges available (6898-2 RC)
6872
6884
6889-03
SECTION 6
Aprons
Made in waterproof PVC on rayon cloth with
cross-over ties at the shoulder and loops at
the waist.
Supplied complete with lids and useful for
storage of glazes, colours and media.
6880
57 cc. (2oz) capacity.
6882-04 113 cc. (4oz) wide neck
6882-08 227 cc. (8oz) wide neck
6882-20 567 cc. (1 pint) wide neck
6884
4.5 litres (1 gallon) capacity.
Measuring Jugs
6899 Safety Goggles
DISCONTINUED
6873
6882-020
6900-01 Cone Viewer
DISCONTINUED
6889-01 567 cc.
(1 pint)
6889-02 1134 cc. (2 pint)
6889-03 2268 cc. (4 pint)
6889-02
Funnels
6900-02 Anti-Glare Safety Glasses
6882-04
6885-03
6888-01
6888-03
6889-01
LARGE SCOOP
DISCONTINUED
DI
SC
O
N
TI
6888-01
N
U
ED
79 mm (2.75") dia.
159 mm (6.25") dia.
Scoops
6890-01 scoop area 150 x 100 mm
(5.75" x 3.75").
41
Plaster Moulds
Plaster Moulds
6960-05
6921 Tray Moulds 114 mm ( 4.5")
Suitable for slip casting or pressing.
Four different shapes are available:
6921-01 C Circular
6921-02 H Hexagon
6921-03 O Oval
6921-04 T Triangular
6932-03
SECTION 6
6922 Tray Moulds 229 mm (9")
Suitable for slip casting or pressing. Four
different shapes as with 6921 moulds.
6922-01 C Circular
6922-02 H Hexagon
6922-03 O Oval
6922-04 T Triangular
6932 Planters
6932-02 Plant Pot Medium
Traditional thrown shape.
Slightly tapering sides.
6932-03 Plant-pot Large
6932-02
6960-03
6922-01C
6922-03O
6922-02H
6922-04T
Storage Jars
6960-01 Storage Jar Small
6" x 5.5" dia (152 x 140 mm)
6960-03 Storage Jar Medium
8.5" x 7.5"dia(211xl91mm)
6960-05 Storage Jar Large
10" x 8.5" dia (254 x 211 mm)
Please Note:
All dimensions are clay cast sizes
42
6921-04T
6921-03O
6921-01C
6921-02H
Plaster Moulds
Cups
6970 Tea Cup 83 x 115 mm (3.25" x 4.5")
6971 Saucer 133 mm die (5.75")
6595 Coffee Cup 82x114 mm (3.25"x4.5")
6966 Saucer 146 mm dia. (5.75")
6990-01 Teacup with Handle
6990-03 Beaker with Handle
6984 Wine Carafe 280 x 153 mm dia
(11" high x 6")
6990-06
6990-04
6990-12
DISCONTINUED
DISCONTINUED
DISCONTINUED
Tankards
6990 1/2 pint Tankard 102 x 89 mm dia
(4" high x 3.5")
6991 1 pint Tankard 127 x 121 mm dia
(5" high x 4.75")
6990-01
6990-09
6984
Miscellaneous
6993 Egg Cup (2 per mould) 57 x 57 mm
high (2.25" dia x 2.25")
6994 Chicken & Basket
Two piece mould for each item
(Total height 248 x 254 x 198 mm wide
(9.75" x 10" long x 8")
6995 Salt and Pepper Shakers
Teapots
6973 New Tea Pot 203 x 292 mm long
(8" high x 11.5")
6973
Bowls
6975 Bowl 121 x 76 mm deep
(4.75" dia. x 3")
6990-09 Sugar Bowl
6976 Lidded bowl 127 x 95 mm high
(5" dia x 3.75")
6990-3
6968
6977
6995
Jugs
6980-01 Jug 82 x 121 mm deep
(3.25" x 4.75")
6980-02 102 x 153 mm deep (4" wide x 6")
Goblets-Wine Carafe
6982-01 Goblet 149 x 82 mm dia
(5.75" x 3.25")
6982-02 Goblet Bulbous type
133 x 89 mm dia (5.25" x 3.5")
Plates
6986 Large Plate 292 mm dia (11.5")
6987 Oval Dish 356 x 254 mm (14" x 10")
6988 Medium Plate 165 mm (6.5" dia)
6990-04 Plate 7 in
6990-05 Plate 8 in
6990-06 Plate 10 in
6994
6976
6975
6993
6991
6980-02
See our website
www.potclays-ceramic-cafe.co.uk
6970 & 6971
for details of our large range of
quality bisqueware
6982-01
6982-02
6990
6980-01
6965 & 6966
43
SECTION 6
Casseroles
6968 Casserole-Stew Pot Complete with
lid 254 x 140 mm high (10" dia x 5.5")
6977 Casserole high 184 x 140mm
(7.25" dia by 5.5") with lid
6990-12 Casserole 102mm x 254mm dia
(4" high x 10.5")
Shimpo Potters Wheels
Shimpo RK10
Shimpo Whisper
Shimpo wheels have a worldwide reputation for quality and reliability. The RK10 is superbly engineered and utilises
a 0.25hp motor to power the wheel up to 240rpm but the traction drive system is such that the pulling power is
equal to that of 0.5hp wheels, even at low speeds. Indeed, a particular feature is its low speed performance and
easy control. It is notably quiet too; a fact much appreciated by production throwers.
The Whisper represents the next generation of potter’s wheels. Responsive and high torque at all speeds, powerful
and quiet; This wheel is by far the quietest on the market.
- Sealed belt-drive unit
- Broad speed range allows optimum speed under all load
conditions
- Reversibility accommodates right and left-hand users
- Compact design saves space
- Wheelhead turns freely at zero rpm and serves as a banding
wheel
- Strong steel body
- Two-piece splashpan is removable for easy cleaning
- Rubber lined handgrips
- Adjustable feet for stability on uneven floors
- 12 month warranty
Motor: 0.25hp 186.4W AC 230V 50Hz
Wheelhead Speed: 0-230rpm
Wheelhead Direction: Clockwise/counter-clockwise
Centring: 50kg (100lbs)
Wheelhead: 300mm (12”) dia. light alloy casting
Dimensions: W 572 x L 630 x H 485mm
(19 x 22.5 x 25”)
Weight: 35kg
7004-W3D Whisper RK3D
SECTION 7
7004-W3D
Fixed foot pedal with hand lever; Compact design
saves space.
7004-02
Motor: 1/2 HP 400W AC230V 50Hz single phase
Drive System: Direct Drive DC Brushless Motor
Speed Control: Fixed Foot Pedal with Hand Lever
Wheelhead Speed: 0-250RPM
Wheelhead Direction: Clockwise/counter
Wheelhead: 300mm/12” light alloy casting
Dimension: 525 x 582 x 515mm
Ship weight: 45kg
7004-W3E Whisper RK3E
Remote foot pedal (detachable) and telescopic legs (5
settings): All throwing positions accommodated. Three-leg
design: Easy levelling and stability. Larger 14” wheelhead.
Built-in worktable for tools and pots. Modular design for
compact storage.
7004-01 RK Lever Pedal
Features foot pedal and hand lever and can be set to
maintain any selected speed.
7004-02 RK10 Remote Pedal
This version has a remote control foot pedal which can be
moved around to any convenient position and allows selected
speeds to be maintained.
- Brushless DC motor: Smooth, quiet (30 decibels) powerful,
no maintenance
- Electronic Controller: Maintains desired speed under all
load conditions
- Broad Speed Range: Allows optimum speed under all
load conditions
- Reversibility: Accommodates right and left-hand users
- Built-In Breaker: Motor protected from overload
- Wheelhead: Turns Freely at 0 RPM - serves as a
banding wheel
- Two-Piece Splashpan
- Two Year Warranty for Peace of mind.
7004-01
Motor: 1/2 HP 400W AC230V 50Hz single phase
Speed Control: Remote Foot Pedal
Wheelhead Direction: Clockwise/counter
Dimension: 600 x 702 x 580mm
Ship weight: 42.5kg
7004-W3E
7005-W3T Whisper T
Economy version of the RK3E: Ideal as a first wheel and
perfect for tight budgets.
Please contact us for more information on our Shimpo Potters Wheels
44
Motor: 300W AC230V 50Hz single phase
Speed Control: Remote Foot Pedal
Wheelhead Direction: Clockwise/counter-clockwise
Dimension: 750 x 572 x 580mm max.
Ship weight 53kg
7004-W3T
Potters Wheels
7005-D Venco Direct Drive Potters Wheel
7010 Talisman 2 Potters Wheel
550W (3/4hp) direct drive permanent magnet motor (110-240V, 50/60hz) - smooth, high torque and maintenance free
A well designed and constructed wheel, suitable for the professional studio potter and educational establishments.
The wheel is extremely robustly built with a durable powder coated sheet steel construction and incorporates
heavy duty sealed-for-life bearings. It is driven by an electronic variable speed motor which gives excellent speed and
torque response and also makes the wheel very quiet and smooth to operate. The wheel is complete with a 12”
fully reversible aluminium wheelhead, an adjustable foot pedal and a large height adjustable padded seat.
Easy-clean touch pad speed/direction control
Wireless foot pedal allows greater flexibility by removing constraint
of the electric cord running to the pedal.
330mm (13”) corrosion resistant marine aluminium wheel-head
Body and legs constructed from heavy duty brushed
stainless steel
May be used as a sit-down, stand-up or table top wheel
Easy clean, diecast marine aluminium splash tray with labyrinth
bearing protection
Wheel structure and tray guaranteed for 10 years.
Weight 25kg
Shown
with optional
clip- on shelves
L69xW51xH53cm (L23”xW19”xH21”)
CE certified
7007-01 Oxford Potters Wheel
This wheel has been extensively developed to provide a wheel with unrivalled power and torque which is
extremely quiet - probably the quietest of its type available on the market. The wheel is constructed using a
quality steel chassis using sealed-for-life roller bearing, dynamically balanced drive pulleys and a high quality
drive motor. It also incorporates one of the most sophisticated control systems available giving the wheel
excellent response. The drive system is complemented by a remote foot pedal that will maintain pre-set speeds
and is also makes the wheel very user-friendly. The body of the wheel is made of strong durable fibreglass and
incorporates a moulded polypropylene splash tray with drain unit. It is supplied complete with a 12” wheelhead
and fully adjustable padded seat.
Specifications
Motor: 0.5hp variable speed
Bearings: Axial ball bearing sealed for life.
Bowl: Moulded plastic
Wheelhead: 12” dia aluminium
Construction: Sheet steel construction electrically welded
Speed range: 0 to 300rpm with reverse capability
Dimensions: W 690 mm x L 920 mm x H 785 mm approx.
Weight: 70kg approx.
Centering weight: 25kg of clay
7011 Artisan Potters Wheel
The Artisan Wheel is built with attention to detail and construction and will provide long, trouble-free service for
both the professional and amateur potter. It is constructed using a polished wooden cabinet complete with an
integral shelf and a two-position adjustable upholstered seat. It incorporates a large, moulded plastic bowl. The
drive mechanism is an extremely smooth drive which offers low noise and vibration whilst giving excellent torque
response so enabling large amounts of clay to be thrown. Fully reversible wheelhead for the left handed thrower.
Double sealed top bearing for extended life.
Specifications
UK MADE
Motor: 0.37kW (0.5hp)
Bearings: Axial ball-bearing sealed for life.
UK MADE
UK MADE
Bowl: Moulded polypropylene
Specifications
Motor: 0.5Hp; Voltage 220V/240V; 5OHz single phase
Speed: 0-280rpm
Wheelhead: 12” fully reversible
Splash Tray: Moulded plastic
Options: Easy lift wheelhead and batts
Weight (unpacked): 70kg approx.
UK MADE
Wheelhead: 12” dia aluminium
Construction: Electrical welded steel chassis with moulded
fibreglass body
Speed range: 0 to 280rpm with reverse capability
SECTION 7
Intelligent computer based speed controller – super smooth and
powerful 0-300RPM speed range (forward and reverse)
702-770 Momentum Potters Wheel
The Momentum wheel is a return to the traditional design of the Potters Wheel.
It is constructed from a fabricated steel frame and has been designed for easy
use. The heavy steel flywheel is mounted on two long-life sealed bearings and
is coated with an anti-slip coating to provide grip when touching the fly wheel.
7014-01 Fitzwilliam Potters Wheel
Specifications
Dimensions: W 700 mm x L 1070 mm x H 900 mm
Optional extras: Motor Assist; Large Splash Bowl; Padded Seat
The Fitzwilliam Potters Wheel, designed by Mervyn Fitzwilliam, has been described as the “Rolls Royce” of
potters wheels. The 0.5hp motor is controlled electronically. The precise speed control is operated using a simple
foot pedal which has a return mechanism built into it and operates in a similar way to a car acceleration pedal.
The wheel is also fitted with a removable tray and reversing switch.
7015 Wheelbats Circular bats made from marine plywood for exceptional warp
resistance. Attach to wheelhead using pad of clay, locating pins or batt retainer.
Diameters available: 8, 9, 10, 11, 13, 15” (203, 229, 254, 279, 330, 381mm)
7014-02 Craftsman Wheel also available to special order. Please contact us for details.
7016 Locating Pins also available
UK MADE
SUPPORTING BRITISH INDUSTRY
45
Pugmills
7039 Pugmill 50mm Split Barrel with Safety Switch
The 7039 is the same model as the 7039-01 but is fitted with an interlocked hopper safety switch. This switch
together with its high torque motor makes the pug mill extremely easy to load as there is no safety grid in the
hopper to impede the flow of clay. When the loading handle is raised the machine switches off and then on again
when the loading handle is lowered.
Specifications
100mm aluminium body; 50mm extrusion • Split body to facilitate easy cleaning • Individual Nylatron blades mounted on a
hexagonal steel shaft • Geared motor reduction drive - single or 3phase • Safety switch and overload starter
Output:
190-200kg per hour approx.
Overall Size:
W 280mm x L 800mm x H 470mm approx.
Weight:
36.5kg approx.
7039-01 Pugmill 50mm Split Barrel with Safety Grid
This pugmill has been specifically designed for the studio
and classroom environment - being both compact and
lightweight makes them easily transportable. It is fitted with
a hopper safety grid and thermal overload switch as
standard.
7039
The 7046 Pugmill has a 150mm split aluminium barrel to facilitate easy cleaning with a 75 mm outlet. The auger consists
of individually mounted alloy blades mounted on a hexagonal shaft that can be altered in configuration so that a greater
mixing action or a faster extrusion rate can be obtained. Drive is supplied from a high torque helical drive gear box and
the pugmill is supplied complete with all its necessary switch gear.
UK MADE
UK MADE
100mm aluminium body; 50mm extrusion • Split body to facilitate
easy cleaning • Individual Nylatron blades mounted on a hexagonal
steel shaft • Geared motor reduction drive - single or 3phase •
Safety grid and overload starter
Output:
190-200kg per hour approx.
Overall Size:
Weight:
36.5kg approx.
Specifications
Drive:
Construction:
Output:
Dimensions:
Weight:
The 7050-01 Vertical Pugmill has a 150mm split aluminium barrel with a 75mm outlet with individual alloy blades
mounted on a hexagonal shaft. This pugmill offers superior performance over conventional horizontal pugmills but has
the advantage of only having a 60cm x 60cm foot print so it takes up very little room in the studio. The pugmill is sturdily
mounted on its own stand which only requires securing to a suitable floor.
Drive:
Construction:
Optional Extra
Output:
Dimensions:
Weight:
Specifications
0.75kW (1hp) with helical reduction gearbox
All aluminium body 150 mm in diameter with a 75 mm outlet; fitted with alloy blades mounted on a hexagonal
shaft with taper roller bearings; split body for easy cleaning; thermal over load starter with safety interlocked
switch
360kg per hour approx.
W 609mm x D 711mm x H 1980mm approx.
123kg approx.
7050-01
7050-02 Vertical Pugmill 100mm Split Barrel with Safety Switch
7039-04
stand for 7039 range
7039-03 Pugmill 75mm Split Barrel with Safety Grid
The 7039-03 is the same compact design as the 7039-01 but has a larger 150mm barrel with a 75mm outlet.
This pugmill has a greater out put and due to its larger hopper is easier to use than its smaller cousin. It is
supplied as standard with a thermal overload switch.
The 7050-02 Vertical Pugmill is an extremely powerful and robust extruder with the capacity to handle all
types of clays. It has a split aluminium barrel and 100mm outlet with individual alloy blades mounted on a
hexagonal shaft. Blade configuration can be altered to suit different types of clay if necessary. The pugmill
is sturdily mounted on its own stand which only requires securing to a suitable floor. Supplied with
separate nose cone which is pre-drilled to facilitate the fitting of different die plates for coil-building etc.
Specifications
Drive:
Construction:
Specifications
150mm aluminium body; 75mm extrusion • Split body to facilitate easy cleaning • Individual aluminium blades mounted on a
hexagonal steel shaft • Geared motor reduction drive - single or 3phase • Safety grid and overload starter
Output:
Overall Size:
Weight:
78kg approx.
UK MADE
46
0.75kW (1.0hp) with helical reduction gear box
All aluminium body 150 mm in diameter with a 75 mm
outlet; fitted with alloy blades mounted on a hexagonal
shaft with taper roller bearings; split body for easy
cleaning. Thermal overload starter with safety
interlocked switch
71kg approx.
Specifications
7039-02 75mm Split Barrel with Safety Switch
The 7039-02 is the larger version of the 7039 and has the
same easy loading hopper fitted with the unique safety
interlocked switch. This version has a 150mm barrel with a 75mm outlet
and individual alloy blades.
150mm aluminium body; 75mm extrusion • Split body to facilitate easy cleaning •
Individual aluminium blades mounted on a hexagonal steel shaft • Geared motor
reduction drive - single or 3phase • Safety switch and overload starter
Output:
360kg per hour approx
Overall Size:
Weight:
78kg approx.
7046
7050-01 Vertical Pugmill 75mm Split Barrel with Safety Switch
Specifications
SECTION 7
7046 Pugmill 75mm Split Barrel with Safety Switch
Output:
Dimensions:
Weight:
1.1kW (1.5hp) with helical reduction gearbox
All aluminium body with a 100mm outlet; fitted with alloy blades mounted on a hexagonal
shaft
with taper roller bearings; split body for easy cleaning; thermal over load starter with
safety interlocked switch
300kg approx.
NOTE
Stands and die plates available for all horizontal pugmills shown on this page.
Please specify pugmill product code when ordering stands or dies.
Choice of three multiple-hole die plates: 6mm, 10mm and 12mm dia. circular apertures.
UK MADE
Pugmills
Shimpo NRA and NVA Pugmills
7045-01 NRA (Non De-airing)
665 (1025 inc. roller shelf) x 335 x 560mm
75kg
19rpm/50Hz
200W single phase 230V
400kg/hr
Twin auger design
Stainless Steel
Stainless Steel
90mm
7045-01
SUPER-twin BASE UNIT
7045-02 NVA (De-airing)
Dimensions:
Weight:
Main Motor:
Vacuum Pump Motor:
Extruding Capacity:
Structure:
Extruding Diameter:
920 (1320 inc. clay roller shelf) x 420 x 750mm
Main Body 140kg Clay Roller Stand 5kg
200kg/hr
Twin auger design
90mm
•
•
•
•
•
7045-02
Venco De-airing Pugmills
Worldwide reputation for performance and reliability. De-airing
pugmills for the larger studio, college or semi-industrial user. Stainless
steel auger with marine grade aluminium barrel, stainless steel mesh
style shredder screen and stainless steel fasteners used throughout. 3
year warranty. CE certified
7054-03 75mm (3”) De-airing Pugmill
7054-03
• 5mm (3”) nozzle diameter 136mm (5 1/3 “) barrel diameter
• Hopper opening: 115x100mm (4 1/2 x 4”)
• 180kg/hour (400lb/hr) output
• 370W (1/2hp) fan cooled single phase motor with overload protection
• 300W (0.4hp) vane style vacuum pump
• L143xW34xH37cm (56”x13”x15”) crated not including pump
• 80kg (176lb)
•
•
•
Suitable for mixing/blending both dry and wet scrap.
Comes standard with 80mm (3.1”) nozzle
Non de-air 500kg/hr (1100lb/hr)
Blend dry scrap with multiple passes - just cut pug into
100mm (4”) logs and re-feed. Blends/recycles approx
120kg/hr (250lb/hr)
Barrel diameter: 125mm (5”)
Motor 370W (1/2hp)
L x W x H (crated with nozzle removed)
118 x 45 x 65cm (47”x18”x25”)
7054-01
base unit
OPTIONAL MODULES for SUPER-twin
7054-01A SUPER-twin DE-AIR MODULE
Clip-on kit for up-grading the base unit to an efficient de-airing pugmill
Super-twin de-air capacity 400kg/hr (880lb/hr)
Tool-free upgrade takes only minutes
300W (0.4hp) vacuum pump with dirt/water trap
Includes stainless mesh style shredder screen for high efficiency
Clip-on vacuum chamber is easily removed for quick cleaning
Comes standard with vacuum dump valve
SECTION 7
Dimensions:
Weight:
Screw Revolution:
Motor:
Extruding Capacity:
Structure:
Screw material:
Screw case material:
Extruding Diameter:
7054-01 Venco SUPER-twin
The SUPER-twin is the most recent pugmill
design from Venco. It was designed using a
“blank canvas” approach incorporating totally
new and innovative concepts. Venco have
listened to user suggestions, resulting in a
pugmill that is high quality, adaptable (one unit
for mixing, recycling, de-airing, extruding) and
incredibly easy to use and maintain,
yet at an affordable price. All stainless steel
construction.
7054-01B SUPER-twin EXTRUSION MODULE 5 piece extrusion kit
Clip-on die holder replaces the standard conical nozzle. Supplied with:
• two pre-made stainless dies 50mm (2”) round, 80x12mm(3”x1/2”) tile die
• two blank plexi-glass dies for user customisation
7054-02
7054-02 100mm (4”) De-airing Pugmill
•
•
•
•
•
•
100mm (4”) nozzle diameter, 200mm (8”) barrel diameter
Hopper opening 200x175mm (8x 6.9”)
550 kg/hour (1200lb/hr) output
1500W (2 hp) fan cooled single phase motor with
overload protection
550W (3/4hp) belt driven vacuum pump
L161 x W 35 x H 59cm(63x14x23”) - crated and
not including vac pump
7054-01C SUPER-twin EXPANSION CHAMBER MODULE
For increased extrusion capacity
150mm (6”) diameter clip-on expansion chamber replaces standard nozzle
All stainless steel construction
Strong flanged end for clamping/bolting wooded die plates
Can extrude sections up to 125mm (5”) width
7054-01D SUPER-twin ROLLER RAMP MODULE (fits all Venco pugmills)
Roller bed for supporting extrusion
Integrated cutting bow
All stainless steel with plastic rollers
Adjustable roller height for all pugmills from 70-240mm (2.75” - 9.5”)
Roller bed LxW 350x140mm (13”x5”)
47
Slabrollers & Extruders
Slabrollers
These slabrollers have been designed to provide an
extremely efficient and reliable method of producing slabs
of clay for hand building or producing tiles. They have been
designed using experience in slabroller production and
incorporate a rack and pinion drive system eliminating the
need for maintenance from troublesome wire driven
systems. The design allows for infinitely variable thickness
of clay to be rolled by means of adjustment of the main
roller using a simple threaded adjuster that allows for fine
accurate adjustment whilst keeping equal distance above
the table across its length. The large single roller is made of
a rust-proof material to avoid corrosion or contamination of
the clay. Featuring fully collapsible legs for easy
transportation and supplied complete with a set of high
quality rolling cloths. Additional cloths can be purchased
separately and there are also optional hard wheel designs
available.
7057 Talisman Extruder
Designed for wall mounting, this easy to use
extruder is a useful item in every pottery
studio for the production of coils or shaped
strips of clay.
Ruggedly made in steel with strong alloy wall
mounting bracket. The 75mm (3") dia. steel
barrel has quick release catches for easy die
fitment. A blank die is included which can
easily be drilled and shaped to any design
and then quickly fitted to the machine.
7053-09
7057-01 1/4" Die
7057-03 1/2" Die
7057-05 Blank Die
7053-07 36" long x 20" wide
7053-08 36" long x 00" wide
7053-09 48" long x 20" wide
SECTION 7
7053-07 36” Slabroller
Dimensions: W 820mm x L 920mm
x H 1090mm approx.
Slab size: W 470mm x L 720mm approx.
7053-24
7057
7053-08 36” Bench Slabroller
x H 470mm approx.
7053-08 48” Slabroller
x H 1090mm approx.
North Star Slabrollers
Excellently engineered with machine cut, knurled rollers
that really grip the cloths and geared drive for easy rolling.
Solidly built, reliable workhorses that are nicely finished.
Supplied with both crank and wagon wheel handles,
cloths etc.
Available in 3 sizes:
7053-24 24" Slabroller
Max. slab width approx. 610mm (24")
7053-30 30" Slabroller.
Max. slab approx. 762mm (30")
7053-36 36" Slabroller.
Max. slab approx. 914mm (36")
Slabroller dimensions indicate approx. max. slab width.
48
7058
7053-36
7058 North Star Extruder
Stainless construction. Robust. Slide-on
extension arms. Easy dies change. Large set
of dies included to make solid extrusions or
various tube shapes. A tool for the
professional.
Wad Box, Mixers & Blungers
7059 Wad Box
Widely used for the extrusion of clay coils to
produce coiled pottery.Supplied complete
with a die plate (7059-3) to provide nine coils
at a time, each .5" diameter.
With the screw feeder wound back, the barrel
can be charged with plastic clay which is
forced through the die plate in the base of the
wad box when pressure is applied via the
screw feeder.
The machine is ruggedly made in steel but
with a 4" dia. toughened plastic barrel to avoid
rusting. It should be bolted either to a bench
or on the special stand.
7062-15 Blunger (15 gallon)
7059
Specifications
Motor and Gearbox: 0.37kW
Dimensions: W 700mm x D 700mm
x H 850mm approx.
Capacity: 15 gallons.
7061-01 5 Gallon Mixer
Supplied complete with heavy duty plastic
tub. An invaluable aid for the rapid mixing of
glazes and slips. Best results are obtained if
the necessary quantity of water is first placed
into the container and the material to be
mixed is then progressively added whilst the
machine is operating. The machine has a
0.25hp motor driving a stainless steel shaft
and vaned aluminium impeller which is
shrouded to prevent a vortex or splashing. A
fitted handle makes lifting from one tub to
another a simple operation.
Specifications
Motor and Gearbox: 0.37kW
Dimensions: W 800mm x D 1000mm
x H 1100mm approx.
Capacity: 25 gallons.
7061-02 5 Gallon Mixer with Stand
As per 7061-01 specification but features an
integral free-standing frame which straddles
the bucket. This makes it more stable and
also permits a variety of container sizes to be
used.
Note Blungers can also be supplied to
special order up to 300 gallon capacity to
customers’ requirements with tanks
of mild steel, stainless steel or
polypropylene. Please ask for details.
SECTION 7
Spare Dies
7059-01 6 mm (.25") holes
7059-02 10 mm (.38") holes
7059-03 13 mm (.5") holes
7059-06 Wad Box Stand
A robust, stable, steel stand specially
designed and drilled to take the wad box.
7062-25
Blungers
Blunging is the process by which raw lump,
powdered or plastic clay is mixed with water
and reduced to slip for casting or decoration.
This electrically driven blunger has been
specially designed for this purpose. It utilises
two stainless steel paddles which rotate at
approximately 150rpm on a stainless steel
drive shaft which is driven by a 0.37kW motor
through a reduction gearbox. The hexagonal
container is made from fibreglass and is fitted
with an extended loading chute to avoid
contact with the blades. The slip is run off
through a valve at the base of the container.
A stand can be supplied as an optional extra.
7062-25 Blunger (25 gallon)
7061-01
7061-02
49
Sifter, Sieve, Jar Mills & Damp Storage Cabinets
7064 Vibratory Sifter
Ideal for rapidly sieving small quantities
of slip or glaze. Supplied complete with
easily removable 8" diameter 80s mesh
sieve (or alternative mesh if requested)
and strong four gallon tub. The power
rating of the sifter is less than that of a
100 watt bulb and hence it will operate
from any domestic mains outlet.
SECTION 7
7064
7065 Rotary Sieve
A new device enabling rapid sieving of
slips, glazes or raw materials. Consists of
a tapered spun aluminium body housing
brush assembly and handle to rotate
brushes over a screen. Brushes
replaceable
and
screen
quickly
removable. Exceptionally easy to clean
and different sieves fitted in seconds. Fits
onto any round container and holds two
gallons of material to be sieved.
Excellent for sieving dry materials also
(e.g. dry ash can be put through screen
as fine as 100s). Supplied complete with
one each: 60s,80s and 100s sieves.
Dimensions Bowl dia. 16" x 5.5" deep
Frame length 24.5". Screen dia.7.5"
50
Jar Mills
These Jar Mills are used to grind ceramic
materials in porcelain jars of varying
capacity. The rollers are mounted on self
aligning bearings which can be easily
moved to accommodate different size jars.
7066 Jar Mill (Single)
Overall Size: W 510mm x L 600mm x
H 540mm approx.
Weight: 50g approx.
Maximum Capacity: Will accommodate 1
x one gallon jar (4.5 litres)
Electrical supply: 220/240V single phase;
380/440V 3phase.
Motor: Powered by 1/3hp electric motor
which drives a rubber covered roller with
one idler roller. IP55 Seated motor
complete with thermal overload protection.
Optional extras: Variable speed control,
duration timers, flame proof motors for
hazardous environments.
7065
Spare Sieves
7065-020
20s mesh
7065-040
40s mesh
7065-060
60s mesh
7065-080
80s mesh
7065-100
100s mesh
7065-120
120s mesh
7067 Jar Mill (Double)
Overall Size: W 510mm x L 1020mm x
H 490mm approx.
Weight: 50g approx.
Maximum Capacity: Will accommodate 2
x one gallon jar (2 x 4.5 litres)
Electrical supply: 220/240V single phase;
380/440V 3phase.
Motor: Powered by 1/3hp electric motor
which drives a rubber covered roller with
one idler roller. IP55 Seated motor
complete
with
thermal
overload
protection.
Optional extras: Variable speed control,
duration timers, flame proof motors for
hazardous environments.
Jars
7068-02 1135 cc (2 pint) jar
7068-04 2275 cc (4 pint) jar
7068-08 4550 cc (1 gallon) jar
7067
Grinding Medium
The optimum weight of medium required
for efficient grinding is 2 Ibs. per pint of
jar capacity. 0.5" medium is generally
used but 0.75" for grinding coarse
materials and frits. A mixture of 2:1
respectively is commonly used for rapid
grinding.
7069-01 13 mm (1/2") diameter medium
7069-02 19 mm (3/4") diameter medium
7074-01 Damp Storage Cabinet
Constructed from sheet steel with rubber
door seals to maintain a moist
atmosphere, this unit is designed for
storing clay ware in the moist state. The
base can be lined with damp plaster
batts when a more moist atmosphere is
required. Supplied with four adjustable
steel shelves. Additional shelves are
available if required. Spray finished in
grey or blue.
7074-01 Shallow W36xH48xD12”
7074-02 Deep W36xH48xD24
Drying Cabinets, Casting Unit, Slip Pump & Sedimentation Tank
7079-02
7088
Drying Cabinets
These drying cabinets have been
specifically designed to aid the drying of
plaster moulds and clay ware. The unit
consists of a fabricated zinc coated steel
cabinet with two vertical hinged front
opening doors which give unrestricted
access to the four removable open mesh
shelves. The heater unit is a 2kW
ceramic heating element which is
thermostatically controlled. The unit is
suitable for operation from a standard 12
amp single phase supply and is complete
with an on/off temperature control switch.
774-301 Drying Cabinet (Narrow)
Dimensions: W 45” x D 23” x H 48” approx.
Electricity supply: 2kW; 220/240V single
phase; 50 Hz
774-302 Drying Cabinet (Wide)
Dimensions: W 72” x D 23” x H 48” approx.
Electricity supply: 3kW; 220/240V single
phase; 50 Hz
7079-02 Slip Pump
This Slip Pump has been designed as a
highly versatile method of slip casting
both for studio and hobby ceramics. The
pump uses a rotary vaned design capable
of giving a good even flow. The pump also
has an agitating effect on the slip keeping
the slip in a usable condition for short
periods of time and can also drain moulds
by the use of a siphoning action
Pump & Frame: Manufactured from
stainless steel and aluminium providing a
rust resisting pump unit.
Mobile Container Capacity: 10 gallons
Motor & Switch: Single phase 1/2hp
220/240V. Both switch and motor are
IP55 rated enabling them to be used in
complete safety in the slip casting
environment Gun/Hose: A specifically
designed professional slip gun attached
to a 3/4” bore PVC hose.
Pump dimensions: W 300mm
x D 300 mm x H 800mm.
Weight: 14.5kg.
7088 Sedimentation Tank
Helps protect our environment and
prevent blocking of drains with clay or
plaster residues. Collects sediment but
allows water to continue to drains. Easily
fitted under sink and to waste system.
Portable: wheel away for emptying.
Simple but effective.
Size 620 x 420 x 530 mm high.
7079-04 Slip Casting Unit
The 7079-04 features the 7079-02
mounted in a self-contained fibreglass
tank with removable wooden casting rails.
The tank is mounted on castor wheels
and is fitted with bottom drain plug for
emptying and cleaning.
Capacity: 15 gallons approx.
Overall size: W 530mm x D 1040mm
x H 1140mm approx.
51
SECTION 7
7079-04
Spray Booths & Equipment
7082-02 Wet Back Spraybooth (large)
The 7082-02 is a larger version of our popular 7082-01 model. This unit
has a hood internal size of 1m x 1m and is equipped with a separate
water tank that can be detached to aid cleaning.
7080 Spraybooth & Stand
The 7080 Spraybooth has been designed for use in the classroom or
small pottery workshop. The booth is fitted with a 12” electric extractor
fan which produces an air velocity of 250cfm at the face. A washable
heavy duty filter is fitted as standard.
Dimensions:
Stand:
Power supply:
Weight:
Specifications
Size:
Fan:
Air extraction:
Construction:
220/240V single phase
21kg approx.
Only suitable for water based material
Weight:
Power:
Hood internal
Dimensions:
Please note: This spraybooth is designed to be ducted to atmosphere
through ducting that meets your local government requirements. Please
take these requirements into account when ordering this product. If you
have any queries please do not hesitate to contact our technical
department who will be only too pleased to advise you.
Noise levels:
H 1680mm x W 1200mm x D 1585mm approx.
2000cfm
250cf/min
Internal parts stainless steel; polypropylene water
tank/hood
180kg approx.
220/240V single phase; 50Hz water wash; 16 amps
1000mm x1000mm x 585mm deep.
Working depth 500mm.
85 to 90 dba approx.
UK MADE
7082-02
Switchgear and thermal overload protection
7080-01 Spare Filter Cartridge
610x60x51mm (24x18x2”).
UK MADE
Only suitable for water based material
7080
Please note that under heavy use we advise that the booth is extracted to atmosphere.
SECTION 7
7080-03 Ducting
Supplied by the metre.
7082-01 Wet Back Spraybooth
This “water-wash” spraybooth has been designed to meet the ever increasing need to protect our
environment. This type of spraybooth works on the principle of a curtain of continuous recycling water
running down the rear face of the booth. A glaze spray is aimed towards this curtain, the spray being
guided by a powerful extraction fan. The glaze is trapped by the water curtain, whilst the air stream is
pulled through the booth and into a washable stainless steel pre-filter and finally into a washable filter bag.
The excess glaze is washed into the tank and can at a later date be reclaimed depending on the type and
colour of the glaze. There is a ball valve to allow the water to be drained and the contents of the tank
removed. Any glaze materials can also be removed and disposed of safely. The booth is mounted on four
castor wheels. This version is primarily designed to be used by the studio potter and educational faculties
for low volume production, therefore the booth does not need ducting to atmosphere, making it portable
around the studio environment.
Size:
Fan:
Air extraction:
Construction:
Weight:
Power:
Hood internal
dimensions:
H 1655mm x W 720mm x D 1290mm approx.
2000cfm
250cf/min
Steel construction; internal parts stainless steel; polypropylene
water tank
118kg approx.
220/240V single phase; 50Hz water wash; 16 amps
638mm x 625mm x 420mm deep.
350mm
Please note that under heavy use we advise
that the booth is extracted to atmosphere.
UK MADE
7085-100 Spray Kit
A superb, piston-type, high pressure, oil
free air compressor and spray-gun kit.
Complete with air outlet regulator &
gauge, built-in carry handle, pressure-fed
spray gun and air hose.
33.5cfm air displacement
Max. working pressure 8 bar (115psi)
0.5hp, 230V motor
7085-01
Working depth
Switchgear and thermal overload protection
If you are looking for a piece of equipment or machinery that isn’t shown in
our catalogue, please contact us and we will try our best to source it for you.
UK MADE
52
Our spraybooths are only suitable
for water based material.
7082-01
Potclays Kilns
SECTION 8
‘GK & EP’ Ranges
‘Etruscan’ Range
‘Silver’ Range
53
Potclays Etruscan Kilns
Potclays kilns are supplied to meet a
variety of applications. These
include glass work, heat treatment of
metals, metal enamelling and lost
wax processing in addition to
ceramics use.
A large number of our kilns are
specially
made
to
clients'
specification, designed to operate
from different voltages, or specially
built to suit site conditions. Kilns can
be built in two sections, for example,
to pass through narrow doorways
etc., and then bolted together on
site. If you therefore require a kiln of
different size, or one to meet a
particular need, please ask us for a
quotation. Similarly, please contact
us if you need advice to enable you
to select the most appropriate kiln or
accessories, or about siting or
positioning, installation, venting or
operation. Advice will be given
gladly, without obligation.
SECTION 8
Ordering
1) Please state voltage and phase of
electricity supply. Where this is not given
we will assume it is normal UK single
phase voltage (230 volts) with neutral. It
is important to check the voltage and
available power where the kiln is to be
positioned. Ask your electrician or
Electricity Board if in doubt.
2) Check that the kiln will pass through
all doorways and other restrictions and
that the access route is flat and firm.
Steps and slopes can be a particular
problem. Where site conditions are
difficult please consult us. For example
54
we can, at extra charge, build front
loaders in 'split cabinet’ form for easy
assembly on site. Note that L&L and the
larger Silver top loading kilns are of
sectional construction to enable them to
pass through narrow doorways, up flights
of steps etc.
Guarantee and Maintenance
Limited 3 year
warranty on all
component parts except elements. Full
after-sale
service.
Maintenance
contracts available throughout mainland
UK.
Delivery
Many of our top loading kilns are
collected in 'hatchback' cars etc but
others - and most front loading kilns - are
generally consigned by special vehicle.
Delivery is normally by lorry or by
special van fitted with a tail lift facility.
Help is needed either with offloading or in
assisting our driver. With assistance kilns
can be moved into final position. Delivery
is charged extra dependant on distance,
kiln size and site conditions. We can take
care of everything but delivery
arrangements must be discussed with us
and agreed at time of ordering.
Installation
Kilns smaller than 3.1kW can be
plugged into a 3 pin 230 volt power
socket. Larger kilns have to be wired into
the supply through an isolator or switch
fuse unit (e.g. cooker point). Kilns of
internal height 68.6mm (27”) and also the
SK43 can be connected to either a single
phase or a three phase & neutral supply.
For large kilns, a 3-phase power supply
is generally preferable. Connection to
either supply is simple for a competent
electrician. If in any doubt, contact us.
Etruscan top loading studio
electric kilns - Great Value!
Top quality elements
Fitted with electronic controller
Kiln stand included
Furniture set & batt wash included
Compact, easy to operate and reliable
kilns that range from the 1314 and 1418L
models operating from a 13amp power
socket to the 1418HT and 1818 models
which can be wired to a cooker circuit.
Comes fitted with an automatic firing
controller (see page 62), either
a) Hobbymaster 4 or
b) Firemaster 5
Etruscan 1314
All Etruscan kilns are manufactured by Potclays with a strong,
polished stainless steel frame, 75mm of high temperature refractory
brickwork, a brick lid and reversible base disc.
Kiln
Max
1314
1280oC
31 litres
(1.1ft3)
1418L
1300oC
44 litres
(1.6ft3)
349 x 457mm
(13.75” x 18”)
508 x 762mm
(20” x 30”)
40kgs
3.1kW
13amps
1418HT 1150oC
44 litres
(1.6ft3)
349 x 457mm
(13.75” x 18”)
508 x 762mm
(20” x 30”)
40kgs
3.8kW
16amps
1300oC
74 litres
(2.6ft3)
451 x 457mm
(17.75” x 18”)
610 x 762mm
(24” x 30”)
52kgs
6.2kW
26amps
1818
Capacity
Dimensions (dia x height) weight
Internal
External
337 x 343mm 470 x 597mm 33kgs
(13.25” x 13.5”) (18.5” x 23.5”)
electrical
3.1kW
13amps
Potclays Silver Kilns
Manufactured by Potclays
Sandwich
wall
construction
comprising 75mm brick thickness inside
5mm of ceramic paper, housed in an
extra-thick, mirror-finished stainless steel
case. Vent plugs in sides and lid.
Separate reversible base. Stand with
castor wheels. Lid operated safety switch
and element power-on lights fitted into
switchbox for good diagnostics. Lifting
handles fitted. Top quality thermocouple
and Kanthal elements fitted. A separate
wall mounting control box houses a
Firemaster 5 (or alternatives, see page
60) temperature controller; a second wall
box houses energy regulators controlling
separate zones of the kiln; power-on
light, zone energy regulator cycling
lights; contactor(s) and accessory circuit
fuse(s). Both wall boxes are ready wired
to the kiln and only require mounting to a
wall. Strongly constructed for long life
and low maintenance.
The extra ceramic paper and the
separate wall mounting control box are
major features of Silver kilns. The 5mm
paper keeps the kiln cooler and the wall
boxes allow all important electrical
components to work in a cooler
environment to ensures good reliability.
They are also more convenient to use
and reduce installation costs since the
power cable to the kiln is already fitted.
An optional zone controller is
available for very even heat distribution
at all temperatures. This uses a separate
thermocouple in each zone.
S43 & S65 Silver Kilns
KILN DETAILS
Kiln. Max.
No.
rec.
temp.
Capacity
S26
1300oC 74 litres
2.6ft3
S39 1300oC 110 litres
3.9ft3
4.3ft3
o
S65 1300 C 184 litres
6.5ft3
10.5ft3
o
S105 1300 C As above
(with 3 regulator option)
Dimensions
Dia. x Height
Dia. x Height
451 x 457mm
17.75 x 18”
451 x 686mm
17.75 x 27”
584 x 457mm
23 x 18”
584 x 686mm
23 x 27”
737 x 686mm
29 x 27”
As above
781 x 762mm
30.75 x 30”
781 x 965mm
30.75 x 38”
933 x 762mm
36.75 x 30”
933 x 965mm
36.75 x 38”
1067 x 965mm
42 x 38”
As above
Electrical Details
Weight Power
VoltsRating
Amps
Kg
kW
Energy
Regs.
No. of
Elements
56
6.2
230-27
2
6
71
7.26
3
9
70
8.5
2
6
89
10.8
3
9
145
15.0
230-30
415-10
230-37
415-12.3
230-47
415-15.7
230-65
415-21.7
3
12
145
17.0
230-74/415-24.7 As above
12
Batt size
(round)
387 x 15mm
15.25 x 0.625”
387 x 15mm
15.75 x 0.625”
533 x 19mm
21 x0.75”
533 x 19mm
21 x0.75”
641 x 25mm
25.25 x 1”
As above
Furniture
Set*
(Extra)
3 batts
+ props
4 batts
+ props
3 batts
+ props
4 batts
+ props
8 x 1/2 batts
+ props
As above
55
SECTION 8
Instrument Options:
Please refer to page 62 for detailed descriptions
of the following controllers .
Hobbymaster 3
An old favourite. Memory stores a single userdefined 2-ramp firing cycle with delayed start and
timed final soak. Lockable keypad.
NEW Hobbymaster 4
Can be switched between different operational
modes for ceramics, glass etc. Up to 6 user
defined programs, each with up to 8
heating/cooling ramps, 8 target temperatures and
8 hold periods. Delayed start. Separate output for
safety relay.
NEW Firemaster 5
9 user defined programs each with 1 to 9
segments, each segment having two
heating/cooling ramps followed by a timed soak.
Delayed start, step skip, lockable keypad, energy
recording, event output, safety relay output,
power failure recovery.
NEW Zonemaster
Maintains separate control of up to 3 zones for
maximum uniformity of temperature throughout
the kiln. See page 60 for more details.
Silver Kiln Construction:
S26, S39 and S43 kilns have one-piece body
construction. S65 and S105 kilns have two-piece
body construction. The S65 alternatively can be
supplied as one piece body construction.
Silver top-loading electric kilns
L&L Kilns
Potclays are the exclusive importers to the
British Isles for L&L Kilns who are one of the
leading builders of craft and industrial kilns in
the USA. The scale of their top loader
operation enables high quality kilns at
competitive prices and the present currency
exchange rate ensures their unbeatable
value.
SECTION 8
The hardened clay element holders are a
major feature of all the L&L kilns we sell. They
protect delicate brickwork and improve heat
transmision. Patented by L&L they are
exclusive to L&L.
Other features of all L&L kilns are:Designed for easy maintenance; high
specification controllers; reversible base to
extend life if damaged by glaze etc; sectional
construction for easy transportation up steps
and through narrow doors; 3” brick used in all
kilns so for external diameters (minimum
access doorway) add 150mm (6”) to internal.
Only 250mm access width needed if kiln
sections are dismantled.
L&L
Model No. Name
80LLF
Fuego
80R
Robin
80LLE18S Easy Fire
80LLE18T Easy Fire
80LLE23S Easy Fire
80LLE23T Easy Fire
80LLE28S Easy Fire
80LLE28T Easy Fire
18S
18T
23S
23T
28S
28T
Voltage
230
230
230
415/230
230
415/230
230
415/230
13amp “Plug and Go” kilns
Robust construction
Hardened element holders
Quick release electrics housing for easy
access for maintenance
Versatile 3 button
controller.
Reversible base
Stand ready for kiln
vent attachment.
1285oC
maximum temperature.
At 40litres, one of the
largest stoneware kilns
available to run on
13amp supply.
External diameter 52cm
Phase
1ph
1ph
1ph
3 or 1ph
1ph
3 or 1ph
1ph
3 or 1ph
1100oC
maximum temperature.
At 70 litres, probably
the largest kiln on the
market for use from a
13amp socket.
External diameter 58cm
EasyFire Range
E28S
For even easier access
to contactors etc. the
EasyFire range have a
hinge-down outer
switch housing as well
as a quick release
inner housing.
Spring assistance to
help lid raising.
Hardened element
holders.
Strong metal support
across lid to reduce
brick stress.
GK150 Kiln
Multi-zone control to
optimise
temperature
uniformity
throughout the kiln.
Dynatrol Control
allows controlled
cooling.and choice
of ramp/setpoint
programming or
Easyfire one-touch
cone selection.
Delayed start and
pre-heat
EP73 Kiln
E23T
Internal Dimensions
Cubic Kilo
Temp Ship Wgt
Diam
High
Litres Feet Watts Amps
Rating
(KG)
33cm (13”)
45.7cm (18”)
40
2.5
5.87
13.0
1290°C 100Kg
42cm (16.5”) 45.7cm (18”)
70
2.5
5.87
26.7
1100°C 100Kg
42cm (16.5”) 45.7cm (18”)
70
2.5
5.87
26.7
1290°C 100Kg
42cm (16.5”) 68.6cm (27”) 105
3.75
8.79 13.3/39.9 1290°C 120Kg
57cm (22.5”) 45.7cm (18”) 125
4.4
8.66
39.4
1290°C 140Kg
57cm (22.5”) 68.6cm (27”) 190
6.8
11.4 17.3/51.9 1290°C 150Kg
71cm (28”)
45.7cm (18”) 190
6.8
10.5
47.7
1290°C 170Kg
71cm (28”)
68.6cm (27”) 290
10.2 15.07 22.8/68.4 1290°C 200Kg
All Easyfire kilns are fitted with 2 or 3 zone 6 program, 9 segment Dynatrol Controller. Fuego and Robin have Bartlett 3K 4
program, 8 segment. Thermocouples protected by industrial quality thick ceramic protection tubes.
See page 60 for details of venting systems.
56
See the next page for full details of
these Frontloading Kilns
EP56 Kiln
Potclays Gold & EP Kilns
Gold front loading kilns are very durable,
reliable and exceptionally efficient production
kilns of high performance for school or
industrial use. They are constructed from the
latest high temperature insulation refractories
comprising an ultra-efficient brick hot face and
back-up insulation to give a 150mm thick wall
of exceptionally low conductivity. This ensures
extremely low heat loss, very low external
temperatures and amazingly low firing costs.
Elements, in highest grade Kanthal for long
life and fast, economical performance up to
1300oC, are fitted to both side walls and
hearth.
The robust angle iron framework featuring an
integral stand houses ventilated sheet steel
panels which are treated with corrosion
resistant paints and very attractively finished
in grey and black. One large spy hole is fitted
as standard into the door (multiple holes to
special order only) and a large vent in the roof.
See page 60 for kiln ventilation and protective
cages.
EP Series
EP kilns combine the great durability of the
'Gold' kiln design (and have the same robust
angle iron construction and hot face
brickwork) but using a 115mm wall thickness.
This gives a lower capital cost and a quicker
cooling rate: factors which will be appreciated
in busy production situations.
The kilns have been designed to be a cost
effective package and incorporate a
thermocouple and choice of Hobbymaster,
Firemaster or Zonemaster (see page 60)
temperature controller which is factory fitted.
EP kilns can be seen to give a very good
capacity/price ratio. Spy hole: see above
“Gold Series”.
The kilns are attractively spray finished in grey.
*Furniture sets include a range of props.
KILN DETAILS
Kiln. Max.
Firing Chamber Size
No.
rec.
temp.
Capacity Wide Deep High
GK4
13000C 12 litres
0.4ft3
GK10 1300oC 28 litres
1.0ft3
O
GK22 1300 C 62 litres
2.2ft3
GK29 1300OC 82 litres
2.9ft3
o
4.3ft3 `
6.3ft3
6.9ft3
o
8.2ft3
10.2ft3
o
GK125 1300 C 354 litres
12.5ft3
15.0ft3
18.0ft3
o
GK250 1300 C 708 litres
25.0ft3
Overall Size
Wide Deep High
229x229x229mm 457x533x597mm
9x9x9”
18x21x23.5”
305x305x343mm 559x673x686mm
12x12x13.5”
22x26.5x27”
381x457x343mm 724x914x1524mm
15x18x13.5”
28.5x36x60”
381x457x457mm 724x914x1549mm
15x18x18”
28.5x36x61”
381x457x686mm 724x914x1619mm
15x18x27”
28.5x36x63.75”
457x508x750mm 800x965x1619mm
18x20x29.5”
31.5x38x63.75”
508x559x686mm 826x1041x1575mm
20x22x27”
32.5x41x62”
457x508x978mm 800x965x1619mm
18x20x38.5”
31.5x38x63.75”
457x635x978mm 800x965x1676mm
18x25x38.5”
31.5x38x66”
610x762x762mm 953x1219x1797mm
24x30x30”
37.5x48x70.5”
610x762x914mm 953x1219x1797mm
24x30x36”
37.5x48x70.5”
610x914x914mm 953x1372x1797mm
24x36x36”
37.5x54x70.5”
686x914x1143mm 1029x1372x1981mm
27x36x54”
40.5x54x78”
KILN DETAILS
Kiln. Max.
Firing Chamber Size
No.
rec.
temp.
Capacity Wide Deep High
Wide Deep High
EP38 1300oC 107 litres
3.8ft3
o
EP45 1300 C 127 litres
4.5ft3
5.6ft3
o
7.3ft3
o
8.7ft3
9.5ft3
o
EP117 1300 C 331 litres
11.7ft3
724x914x1549mm
28.5x36x61”
724x965x1626mm
28.5x38x64”
724x914x1619mm
28.5x36x63.75”
800x965x1619mm
31.5x38x63.75”
800x1117x1651mm
31.5x44x65”
800x965x1619mm
31.5x38x63.75”
800x965x1676mm
31.5x38x66”
457x495x457mm
18x19.5x18”
457x546x572mm
18x21.5x22.5”
457x495x686mm
18x19.5x27”
533x546x749mm
21x21.5x29.5”
533x648x686mm
21x25.5x27”
533x546x978mm
21x21.5x38.5”
533x673x978mm
21x26.5x38.5”
Overall Size
Electrical Details
Weight Power
Max.
Rating
Amps
Kg
kW
230v 3ph
Furniture
No. of
Elements Quantity
per set
49
2.5
10.4
-
2
1
98
3.0
13.1
-
2
2
180
5.0
21.7
-
8
2
238
6.0
26.1
-
10
3
295
7.25
30.0
10.0
12
4
350
10.0
43.4
14.5
12
4
350
12.0
52.0
17.4
12
8
410
13.5
58.7
19.6
16
5
495
16.0
69.6
23.2
16
8
525
18.5
80.4
26.8
16
16
580
21.5
93.5
31.2
16
16
660
25.5
110.4
37.0
16
16
950
32.0
139
46.3
18
20
Electrical Details
Weight Power
Max.
Rating
Amps
Kg
kW
230v 3ph
Furniture
No. of
Elements Quantity
per set
220
7.0
30
10.0
10
3
270
7.9
34
11.3
12
4
285
10.5
39.6
13.2
12
4
340
12.0
52.5
17.5
12
4
380
13.5
59
19.7
12
6
400
16.8
70.0
23.3
16
5
480
19.5
81.2
27.1
16
8
Batt size
203x203x13mm
8x8x0.5”
292x292x19mm
11.5x11.5x.75”
362x432x19mm
14.25x17x.75”
362x432x19mm
14.25x17x.75”
431x362x22mm
17x14.25x.75”
419x457x15mm
16.5x18x.625”
432x254x19mm
17x10x.75”
419x457x15mm
16.5x18x.75”
406x279x19mm
16x11x.75”
356x279x19mm
14x11x.75”
356x279x19mm
14x11x.75”
362x279x19mm
17x11x.75”
362x318x25mm
17x12.5x1”
Batt size
432x432x25mm
17x17x1”
457x419x16mm
18x16.5x0.625”
432x432x25mm
17x17x1”
495x508x25mm
19.5x20x1”
483x317x25mm
19x12.5x1”
495x508x25mm
19.5x20x1”
483x318x25mm
19x12.5x1”
Set*
Ref. No
8206GK4
8206GK10
8206GK22
8206GK29
8206GK43
8206GK63
8206GK69
8206GK82
8206GK100
8206GK125
8206GK150
8206GK180
8206GK250
Set*
Ref. No
8206EP38
8206EP45
8206EP56
8206EP73
8206EP87
8206EP95
8206EP117
57
SECTION 8
‘Gold’ Series
Truck Kilns & Other Types
Electrically operated truck kilns
CH12-9 Chameleon Glass Kiln by L&L
Truck kilns are more expensively constructed than other kiln types of similar capacity but their
flexibility, economy and practicability uniquely suit them to the demands and needs of busy
production units.
A truck contained in the kiln can quickly be removed after firing and the kiln door closed to
retain the residual heat. This permits the truck to be unloaded and reloaded with exceptional
ease and without being exposed to the heat of the kiln. Alternatively a further truck, preloaded
with ware, can quickly be placed into the kiln for firing after the fired truck has been removed
and shunted to siding rails. The system is less obtrusive, more economical, more durable and
more flexible than alternative systems.
The trucks run on rails supplied with the kiln. The kiln is built of strong angle iron and steel
panels housing 150mm of finest quality hot face bricks and fibre back-up insulation with harder
bricks used on adjacent surfaces of the kiln and the trucks. Elements are located in the side
-walls and in the kiln cars. The arched roof is fitted with a manual damper but automatic
dampers and other features to meet clients' needs can be incorporated. The kilns are supplied
from a minimum of 18ft, (510 litres) up to 100ft3 (2832 litres).
The Chameleon glass & hobby kiln is the new plug-in home kiln for
glass artists and other fired arts enthusiasts. Suitable for fuse glass,
rake glass, china paint, low-fire ceramic bisque and glaze, PMC
precious metal, even heat treatment of knives and glass. L&L’s unique
hard ceramic element holders make it the first small square lid
elemented glass kiln for home use for firings virtually free of dusting.
A Bartlett controller gives four easily programmed firing schedules.
Complete easy-to-follow visual instructions make this kiln ideal
for the beginner yet powerful enough for experienced users.
Specifications:- Temperature Limit 1100oC (2200oF)
Interior 34.3 cm (13.5”) square by 22.9 cm (9”) High,
Volume 26.6 liters (0.94 cubic feet)
Exterior Size 48 cm (19”) Wide by 55 cm (21.5”) Deep
by 51 cm (20”) High
Supply 220-240 Volts, 1 phase. Power 2850 watts (13 Amps) at 220
volts,
Kiln Weight 54.3 Kg (120 pounds), Shipping Weight 72.6 Kg (160 pounds),
Shipping dimensions 94 cm (37”) Square by 86cm (34”) High
Lost Wax Kilns by Potclays
SECTION 8
These kilns are specifically designed for dewaxing investment-cast
items and feature a specially grooved hearth with a taphole leading to
a removable tray to enable recovery of the wax and much increased
element life. The standard versions have an energy regulator to control
firing speed and an indicator to show temperature. At extra cost the kiln
stand is a useful accessory, and a variety of optional computer
controllers are available (see page 60). The two most popular sizes are
shown on the right and in the table below but larger sizes can be made
to special order.
58
Gas Fired Kilns
'Thor' kilns - by Potclay Kilns Ltd.
Raku Gas Kilns
The Thor firing system utilises burners
which fire vertically from the base up
both side walls. Heat is therefore
projected directly upwards to where it is
needed without the use of deflection
devices. This is more efficient and aids
more even temperature distribution.
Thor kilns are solidly built of HT1 & 26
grade brick with high quality back up
insulation to give 6" (150mm) thick walls
mounted in a very strong angle iron and
steel cabinet.
They have an arched roof and three
spyholes in the door. Adjustable batts
over the base flue direct combustion
gases into the rear vertical flue which is
fitted with a slide damper.
All kilns have four naturally aspirating
burners each fitted with flame failure
devices. Flame viewing-cooling ports are
fitted in both side walls. At extra cost,
solenoid
valves
and
automatic
temperature controllers can be fitted.
Operates from Propane gas.
Complete with burner, regulator and
kiln stand. Max temp these kilns
have been tested to is approx 1050°C.
81 - 1709RG Kiln 1.2ft3
17" x 9" firing chamber
81-2409RG Kiln 2.4ft3
24" x 9" firing chamber
Extension rings
81-1709RE 17" x 4.5"
81-2409RE 24 " x 4.5"
Laser Kilns
A range of five front-loading down draft kilns of zinc plated sheet steel
construction housing layered refractories with ceramic fibre as the hot
face. The very lightweight low thermal mass structure gives very good
economy and portability. Burners firing from the rear of the kiln are
fitted with flame-failure and electronic spark ignition & can be
supplied for Natural Gas or Propane. ‘G’ Kilns have castor wheels
and a side hinged door. 'J' kilns have adjustable feet and a
centrepivoted door. Further details on application.
SECTION 8
Please Note: An extraction canopy and
flue is needed with all gas kilns.
See page 60.
Thor Kiln Range
Kiln.
No.
Capacity
NGK110 320 litres
11.3ft3
NGK126 357 litres
12.6ft3
NGK140 402 litres
14.2ft3
NGK180 507 litres
17.9ft3
NGK240 674 litres
23.8ft3
Firing Chamber
Wide Deep High
External Dimensions
Wide Deep High
Weight
Kg
Batt size
Gas Burner Kit
610x635x838mm
24x25x33”
660x648x838mm
26x25.5x33”
711x686x838mm
28x27x33”
806x686x914mm
31.75x27x36”
813x914x914mm
32x36x36”
978x965x1829mm
38.5x38x72”
978x1143x1854mm
38.5x45x73”
1016x1067x1778mm
40x42x70”
1143x1168x1930mm
45x46x76”
1156x1448x2045mm
45.5x57x80.5”
780
16”x11.5” x 1”
820
18”x11.5”x1”
880
18”x11”x1”
995
21”x11”x1”
1250
21”x11”x1”
By using our new gas burner
kit pictured here you can easily
and accurately control the
temperature in your
homemade raku kiln. Simply
attach the burner to your kiln
and the regulator connector to
the gas container.
59
Kiln Accessories & Spares
Heat Fuse
Available for 13500C (usual) and 500C
increments below.
8132R Resettable. Operates from
existing pyro. thermocouple. Panel
mounting.
8134 Change-over Switch
Enables two kilns to be fired by one
controller (but not simultaneously)
8135 Automatic Damper
Motor driven unit which opens and
closes the top vent at preset
temperatures or time. Avoids having to
manually insert vent plugs.
8139 Kiln Guard
8136 Spare Elements
Please detail exact position in kiln and
kiln model and serial number. We also
manufacture elements for other kiln
makes and would be pleased to quote.
Ring our kiln department for details.
Elements Sets
The cheapest way of buying elements.
These heavy duty cages are made to
order and are used where young children
or handicapped people may come into
contact with hot kilns.
SECTION 8
8206 Kiln Furniture Sets
See kiln section and pages 63 & 64.
Kiln Spares
All replacement components for most
kilns can be supplied e.g.
Kiln sitter tube assemblies
Porcelain connector blocks
HT1 kiln bricks (8225)
K23 Kiln bricks (8225-2)
Refractory Cement (8226)
Kiln Vent Plugs (8228)
Contactors and safety switches.
Many other items - please contact us.
60
8131-01 Room Ventilator
Ideal for flat roof garages, sheds, etc. No
power supply needed. Wind driven.
Extracts fume etc. Easy to install.
8131-02 Orton Kiln Vent
For top loading kilns. An 18”x18”x9” high
stand housing an air extraction unit onto
which the kiln is placed. Air passes
through small holes in the lid and base
and is ducted to outside atmosphere.
Kiln/Room Ventilation
We have various venting and air
extraction systems for electric kilns
dependant upon kiln type and
requirements.
8131-05 L&L Vent-Sure powered vent
Designed to fit L&L kiln stands.
8131-03 Orton hood vent.
A free standing vent unit that can extract
air from two kilns and duct this to outside
atmosphere.
Extraction-Ventilation Canopies
For removal of heat and noxious fumes
from kiln firings. Leg design enables
fitting to any front loading electric kiln.
Stainless steel construction for smart
appearance and long life. Takes 5”
diameter flexible pipe attached to rear
spigot and taken to outside atmosphere.
Two standard sizes, others to special
order.
Galvanised steel available at lower cost.
804232 42” long x 32” wide x 15” high
(1070 x 810 x 380mm)
805639 56” long x 39” wide x 15” high
(1420 x 990 x 380mm)
See photo of canopy on page 54.
Special kiln canopies with triple flued
chimneys for cool outer surfaces are
available for gas kilns.
See following photos:-
Examples of ventilation canopies
Orton Cones
The composition and structure of
cones is such that they bend and deform
when heated for a period of time. i.e.their
performance depends upon heat work
and not upon temperature only.
They are graded according to the
amount of heat they will withstand and
are placed upright in holders in the kiln
where they can be viewed from the spy
hole.
Orton cones are designed so that when
their bases are placed level they lean at
an angle of 80 and will bend in this
direction when they have reached
‘temperature’.
Since their deformation characteristics
mirror the maturing characteristics of the
ceramic products being fired , Orton
cones are an outstanding method of
indicating heat work carried out
duringfiring.
Temperature Measurement & Control
It is usual to use a set of three
consecutive cones: one to bend below
the optimum firing point, one at the
optimum firing point and one above.
Single small cones are also used in Kiln
Sitter controllers.
8202 self-supporting cones are freestanding and do not need cone stands or
clay mountings. They are stocked only in
016, 017, 06, 05, 04, 03, 02 , 01, 6,7,8,9
and 10. Others can be specially ordered.
After any firing cones cannot be
reused.
Whatever temperature indicator or
controller is used to control a firing it is
strongly recommended that Orton cones
additionally be used since they monitor
heat work rather than temperature.
They reliably monitor the effect of heat
on the ware load and also the heat
balance in various areas of the kiln.
Orton cones are of three types:
8200 Standard Size (2.5”high)
8201 Small Size (1” high)
8202 Self Supporting
ORTON
CONE
No.
018
017
016
015
014
013
012
011
09
08
07
06
05
04
03
02
01
1
2
3
4
5*
6*
7*
8*
9
10
11
Approx. bending temp. oC
(Temp. equivalent)
Cones can be stood in pats of clay or
held in special sockets:
Heating rate oC per hour
60oC
100oC
150oC
8203-S Triple socket for 8200 cones
712
736
769
788
807
837
858
873
917
942
973
995
1030
1060
1086
1101
1117
1136
1142
1152
1160
1184
1220
1237
1247
1260
1282
1293
722
748
782
802
822
848
869
883
922
948
979
1002
1038
1065
1093
1110
1127
1147
1152
1160
1181
1194
1230
1246
1259
1270
1293
1303
732
761
794
816
836
859
880
892
928
954
985
1011
1046
1070
1101
1120
1137
1154
1162
1168
1170
1205
1241
1255
1270
1280
1303
1312
inexpensive way of connecting a
thermocouple to a measuring instrument
or controller. Length to requirement.
Element Wire
6900-1 Cone viewer
Anti-glare disc for viewing cones.
Top quality 1400oC Kanthal wire for
elements, formers, hangers. Available
per metre in many diameters from 0.1mm
to 2mm
Thermocouples
Element Winding Service
13% Platinum-Rhodium thermocouple
(type R) complete with two metres
compensating cable. For use with 8144
and 8145 temperature indicators and all
temperature controllers. Thermocouple
needs to be about 1.5” (approx. 4cm)
longer than kiln wall thickness.
We can manufacture elements at short
notice and at a competitive price for all
makes and types of electric kilns.
Elements for kilns we supply are
normally kept in stock.
8147-5 5.5” thermocouple suitable for
Etruscan, Silver and all kilns with
maximum 3.5” (89mm) wall thickness.
8147-6 6” thermocouple for electric kilns
with max. 4.5” wall thickness.
8147-7 Suitable for kilns with 4.5 - 6”
(114 - 152mm) wall thickness.
8147-9 9” (229mm) thermocouple
Longer thermocouples available. Size
required is wall or roof thickness plus 4 5cm.
For use with gas fired kilns a
thermocouple having a thicker sheath
must be used. To order, add suffix G to
the
thermocouple reference. e.g.
8147-7G
Maintenance Service
8203-M Triple socket for 8201 cones
Compensating Cable
Replicates
the
thermoelectric
performance of the thermocouple up to a
certain surround temperature, for an
Potclays has been building kilns for over
a quarter of a century and their
experienced team of engineers and
builders also provide a quality advisory
and maintenance service. They have the
knowledge and skills to repair all makes
& types of electric kilns under 100cu.ft
and to update older equipment. Safety
checks are made with written reports,
and Service Contracts are undertaken for
peace of mind from regular servicing at a
fixed annual cost. When planning a kiln
installation, advice is available on the
most appropriate kiln type and size, best
location,
electrical
and
control
requirements, ventilation and safety
aspects. Training is given both at
customers’ premises and at regular
seminars
at
our
Stoke-on-Trent
premises.
Kilns can be designed for special uses.
61
SECTION 8
Using Cones
Temperature Controllers
8159H HobbyMaster 3.
An economical but time proven favourite
with one user-defined program of delayed
start, 2 ramps and one soak. Delay & soak
each up to 20 hours, ramps 10-399°C/hr, or
full power. Error reporting & handling of
over-temperature and thermocouple &
element malfunction.
SECTION 8
8145-B Digital Indicator.
PP3
battery
powered
(>100hrs)
temperature indicator suitable for R, S, K
and N type T/C use. Includes case and low
temperature thermocouple as shown, and
plug with 2m compensating cable (high
temp T/C not included). Reports kiln
present & max temp, kiln room temp,
thermocouple failure, low battery. Optional
auto-off (power 15secs, backlight 5secs).
8160-05 Firemaster 5 Controller
Latest updated version of the popular
Firemaster controller designed specifically
for ceramics. Nine user-adjustable
programs each with up to nine segments.
Each segment has two ramps and one
soak. Each ramp rate either heat/cool from
1 to 999°C/hour or full on. Delay & soaks
each up to 100 hours.
Alarm buzzer, and alarm output to auxiliary
power contactor to protect against failure of
control contactor.
Error detection and handling:- Heater
failure, Contactor failure, Thermocouple
failure, Thermocouple reversal, Kiln overtemperature, Room over-temperature,
selected fire time exceeded.
Options include:- Lockup on error, Error
ignore, power-failure recovery, firing
pause/continue, Keyboard lock.
Program can be changed during firing.
Displays show present temperature, program
selected, program stage, energy used.
8159H Hobbymaster 3
8159H4P Hobbymaster 4 - panel version
8159H4W Hobbymaster 4 - wallbox version
81622 Zonemaster - panel version
8145-B Digital Indicator
8160-05 Firemaster 5
62
8159H4 Hobbymaster 4 Controller
This controller has been developed
exclusively for Potclays for types R, S and
K thermocouples by the world renowned
Orton Foundation. Its advanced features
make it excellent value for money. Multiple
software configurations enable it to be
switched between different operational
modes for Ceramic Art, Jewelry, PMC or
Glass Art applications. In addition to the
most popular programs being preset, there
are up to 6 user defined programs, each
program containing up to 8 heating or
cooling rates, 8 target temperatures and 8
hold periods.
The Hobbymaster 4 is available in panel
form or as a complete stand-alone control
box (no external contactor needed on kilns
below 20amps).
8162Z Zonemaster Multi-Zone
The Zonemaster controller accepts types
R, S and K thermocouples for use up to
1320°C. It can be used as a high
specification single zone controller or for
optimizing temperature uniformity within
multi-zone kilns (a separate thermocouple
is needed for each zone).
It can be programmed either by simply
entering a cone number for accurate
heatwork, or by specifying up to 10
segments each with two ramps, two soaks
and one damper/fan instruction. Four
programs can be stored. Ramps can be full
on, soaks can be indefinite.
Features include delay start, re-program
during firing, segment skip, damper &
alarm outputs, extensive error detection
and handling. Displays each zone temp,
energy usage & cost, cone lookup table.
The Zonemaster is available in panel form
or as a complete stand-alone control box.
Kiln Furniture
8205 Kiln Batts (round or hexagonal)
See price list for complete range.
See price list for complete range.
Dimensions
Max.
Max.
Kiln
1200oC 1300oC Suitability
203x203 mm
(8" x 8")
13mm
0.5”
GK4
18mm
(0.75”)
GK10
357x279 mm
(14” x 11")
18mm
(0.75”)
GK125
363x363mm
(14.25” x 14.25”)
18mm
0.75”
432x280mm
(17” x 11")
18mm
(0.75”)
GK100,
& 180
432x315mm
(17” x 12”)
25mm
(1")
GK250
432x363mm
(17" x 14 .25")
25mm
(0.75")
GK22,29
& 43
432x432mm
(17" x 17")
25mm
(1”)
EP38,56
457x459mm
(18” x 16.5”)
15mm
GK63,82
(0.625”)
292x292 mm
(11.5” x 11.5”)
13mm
(0.5”)
-
483x318mm
(19"x 12.5”)
25mm
(1")
EP117
508x508mm
(19.5" x 20”)
25mm
1"
EP73
3/4"
559x280mm
(22” x 11”)
18mm 25mm
(0.75”) (1”)
EP95
We can cut any of the above batts to
customer’s specification.
330dia x 15mm Round
S17
(13"dia x 0.625")
388dia x 191 x 15mm Half Round
S26, S39
(15.5"dia x 7.5" x 0.625")
J26, J39
533dia x 18mm Round
S43, S65
(21"dia x 0.75")
J43, J65
533dia x 267 x 18mm Half Round
S43, J43
(21"dia x 10.5 " x .75")
S65, J65
673dia x 18mm Round
S105
(26.5”dia x 0.75”)
673dia x337x18mm Half Round S105
26.5”dia x 13.25” x 0.75”
KILN BATTS: Care and Use
8206 Kiln Furniture sets
In the description of each kiln we have
indicated the number of shelves
included in a furniture set. Additionally, a
set also includes a selection of props
sufficient to give equidistant spacing of
the batts in the kiln as well as permitting
wide space variation.
Castellated Props
Turreted props which interlock to form a
very stable propping system. 1.75"
(28mm diameter).
8208-1 1" (25mm) extension height
8208-2 1.5" (38mm) extension height
8209 Castellated Discs
Used at junction of prop column and
shelf to spread the load. 3" (76mm) dia.
x .5" (13mm) thickness x .25" (6mm)
effective thickness.
8210 Tubular Props
Rigid tubes, 1.75" (38mm) diameter
which can be extended in height if
necessary by addition of interlocking
Extension Props.
Prop No.
8210-1
8210-2
8210-4
8210-6
8210-8
8210-10
8210-12
Height
1” (25mm
2” (51mm)
4” (102mm)
6” (152mm)
8” (203mm)
10” (254mm)
12” (304mm)
Testing and Storage Before batts are put
into service they should be carefully and
thoroughly dried and sounded. A dry batt can
be supported by hand at its centre or
suspended between thumb and finger and
tapped with a metal object If it does not ring
clearly a crack may be suspected. A dull
sound suggests the batt is not dry. Always
store batts in a dry place on edge.
3404 Batt Wash
Batts will very gradually become glazed from
repeated glaze firings and, of course, will
absorb glaze coming into direct contact.
Eventually the batt surface will begin to scale
off and has to be chipped away. To minimise
/prevent this the batt can be protected by
application of batt wash to the upper side.
The coating should be regularly checked
and replaced as necessary. It is not
recommended to put batt wash on the props
or on the kiln bricks.
SECTION 8
8205 Kiln Batts (Square or
rectangular)
Thermal Shock
Props and large pieces of ware create hot
spots on cooling batts. Allow time to cool.
Premature opening or 'cracking' of the kiln
door creates uneven cooling and must never
be done above 200C. Keep a good gap all
round between edge of kiln batt and kiln wall
63
SECTION 8
Kiln Furniture
Interlocking Extension Props
These are useful to interlock and extend
the height of 8210 tubular props.
They can also be used individually
or together to form small but stable
prop columns.
8211/1 .5" (13mm) height plus interlock
8211/2 1" (25mm) height plus interlock
Tile and Pin Cranks
8219-01 Universal Tile Crank
A specially designed refractory frame
which will support twenty-four 4.25 "
(108mm) standard tiles.
Approximate overall dimensions
8.75” wide x 6 1/8” deep x 11 7/8” high
(221 x 155 x 303mm)
8212-1 Tubular Collar
8212-2 Tubular Base
May be used at top (collar) and base of
column of tubular props at junction with
kiln shelf to spread the load. Especially
useful with heavy shelf loadings.
8219-02 12" high crank.
Takes 15ea 6" tiles.
8216 Stilts
A popular method of supporting glazed
pottery ware clear of the kiln shelf. Each
stilt has three arms, each terminating in
an upward and downward point, thus
providing minimum contact area.
Point
Height Diameter to Point
Stilt No.
mm
mm
mm
8216-01
10
28
24
8216-02
13
38
33
8216-03
14
57
49
8216-04
17
67
58
8216-05
22
71
61
8216-06
30
89
76
8216-07
39
97
84
8217 Saddles/Pins
Triangular section bars which give
maximum support to large pieces and to
pots having finely turned bases and
rims. Useful in both biscuit and glost
firings
8217-1 1" x 3/16” (25 x 5mm)
8217-2 2" x 1/4" (51 x 6mm)
8218 Star Stilts With short metal points.
Re-usable over and over again.
64
8219-03 Pin Crank.
Takes 6" or 4.25 " tiles
8220 Nichrome Wire (max 1100°C)
Ideal for suspending beads etc. Approx
20’s gauge.
Kanthal Wire (max 1300°C)
1.0mm, 1.6mm, 2.0mm.
Supplied by the metre.
Refractory Insulation Bricks 9" x 4"
8225-01 White, 3" thick HT1
8225-02 2.5 " Lightweight K23
8225-03 3" Lightweight K23
8226 Refractory Insulation Cement
(1kg tub)
For all hotface brick jointing and repair
work. Paste form. Apply to dry brick.
Also available in powder form: 8226P
(0.5kg)
Vent/Spyhole Plugs
8228-01 Silver/Amaco kiln plug
8228-02 GK/EP kiln plug
8228-04 Olympic kiln plug
Ceramics and Glass Books
Would you like to find out more
about any of our A&C Black books?
Please ask us for our current
full-colour A&C Black brochure and
order form
SECTION 9
We also stock Ceramic Review - both
the latest and the previous issue.
65
Health & Safety Information
These notes give the requirements of industrial
hygiene and indicate sources of hazard which may
be encountered when using Potclays products in
industry, in schools and in the studio. Generally
Potclays products present no special hazard in use
provided that good standards of industrial hygiene
are practised.
Users of Potclays products are also assured that:
1. Incorporation of dangerous materials such as
arsenic into any formulation has been
scrupulously avoided.
2. Potentially toxic materials such as cadmium
and antimony are incorporated in the smallest
possible quantities consistent with obtaining
reasonable results and that any inclusion of
lead is in the form of a lead frit of a type
approved by the Factory Inspectorate.
3. We are pleased to advise on any matter
of safety.
SECTION 10
Handling of Materials
Most materials are to some extent harmful when
ingested. This applies equally to materials found in
the home such as washing powders, boracic
ointments, polishes, cosmetics, iodine, soaps etc. as
well as those of the pottery and other departments.
All materials should consequently be handled with
care but in the pottery department certain materials
deserve special mention. These are barium
carbonate, borax, boric acid, silica (flint &
quartz),Chromium oxide, Nickel oxide, on-glaze
enamels, lustres (including liquid gold), ceramic
glazes generally but particularly those containing
cadmium, selenium and lithium; and copper
compounds. In addition, especial care must be
exercised with red lead, white lead, and antimony
oxide but we should point out that we do not include
these materials in our catalogue range for we believe
that their value to pottery departments does not
outweigh the risks arising from careless use.
We should perhaps mention here that distinction
must be made between low solubility glazes (these
contain fritted lead compounds) and the hazardous
'raw' lead compounds such as red lead and white
lead. Glazes marked 'L.S.' in our catalogue do have
a lead content but this is in fritted form and we
absolutely forbid the use of the poisonous raw lead
compounds in any of our glaze formulations. In this
way we ensure that those glazes which do contain
lead are of the safe 'low solubility' type which meet
the stringent safety requirements of the pottery
industry and which are also suitable for use in
schools (see Ed. Mem. 517).The majority of glazes
in our catalogue - including all the stoneware ones are leadless, and these may be considered to be
'extra safe'. Such glazes have been marked 'L'.
66
In this catalogue the abbreviation 'L.S.' therefore
denotes those glazes which are low solubility lead
ones and 'L' denotes leadless.
Low solubility glazes are widely used in industry
and are quite safe from a handling point of view
provided that good standards of hygiene are
maintained. Certainly they may be no more hazardous
than certain leadless glazes and many, many other
materials commonly used in the household and
indeed in other crafts in schools. When considering
toxicity it is consequently necessary to view the
matter carefully with a just sense of proportion. It
should also be remembered that the bright colours
obtained from oxides or underglaze colours used
under or in low solubility glazes frequently are
impossible to achieve with leadless substitutes.
Earthenware slipware for example would generally
give duller colours than those obtained when low
solubility glazes are used.
Dust Problems
Some materials which are not considered toxic
when eaten may nevertheless be hazardous in dust
form. All clays and glazes contain free silica and
such airborne dust may produce silicosis if breathed
in over a period of time. Reasonable care should
therefore be exercised in the handling of all pottery
materials.
Inflammable Liquids and Materials
Materials containing inflammable liquids such as
liquid metals, lustres, media for enamelling and
printing, oils and turpentine should be stored in a
ventilated cool place where smoking is prohibited.
Cloths used to clean any spillage of inflammable
liquids must be carefully disposed of due to the risk
of spontaneous combustion if carelessly stored.
Kiln Vapours and Gases
Potentially harmful vapours and gases may be
evolved when firing ceramic products. Kilns should
therefore be housed in a well ventilated room where
kiln gases are exhausted to atmosphere.
Low solubility - Definition and Test
‘Low solubility glaze' means a glaze which does
not yield to dilute hydrochloric acid more than 5% of
its dry weight of a soluble lead compound calculated
as lead monoxide when determined in the following
manner:
A weighed quantity of the material which has been
dried at 100°C and thoroughly mixed is to be
continuously shaken for one hour, at the common
temperature, with 1000 times its weight of an
aqueous solution of hydrochloric acid containing
0.25% by weight of hydrogen chloride. This solution
is thereafter to be allowed to stand for one hour and
then filtered. The lead salt contained in the clear
filtrate is then to be precipitated as lead sulphide and
weighed as lead sulphate.
Glazes other than low solubility or leadless ones
are prohibited in the pottery industry.
Metal Release Problems
Certain fired glaze and colours may release lead and
other metallic compounds when in contact with
acidic foods and drinks over a period of time There is
a hazard to health if the amount released is above a
certain level and this has led to adoption of metal
release tests in many countries.
All Potclays glazes and frits are formulated to
meet the requirements of the standard metal release
tests with a wide margin of safety except for a very
few glazes in the Artistic and Economy glaze ranges
which we have clearly marked thus:† Such glazes
have been designed for exterior or decorative use
only and should not be used to glaze surfaces which
may hold food or drinks.
Frequently potters desire to make additions to
standard glazes to obtain certain effects but it must
be remembered that the indiscriminate alteration of a
glaze formulation may increase its metal release
characteristics beyond acceptable limits.
There are generally no problems involved in the
adjustment of the leadless glazes in this catalogue
by the addition of all normal glaze materials except
lead or cadmium. In our opinion the low-solubility
glazes in this catalogue may be modified by addition
of small amounts of all normal glaze materials except
lead, cadmium, copper or zinc.
However, it is important to realise that the
responsibility for the safety of the finished articles
rests with the persons producing them since
production techniques and conditions may vary
widely. For this reason it is advisable to submit
finished pieces of ware to an independent testing
laboratory before bulk production is commenced.
Note that we offer a metal release testing facility at
competitive rates.
To summarise we would say that all Potclays
transparent and white glazes and all Potclays
stoneware glazes pass all known safety regulations.
Glazes marked † may not pass metal release tests
although they are safe to handle. Such glazes
should not be used to glaze surfaces in subsequent
contact with foodstuffs and beverages. If in doubt we
will gladly advise.
Metal Release Test
Potters are reminded that it is now a mandatory
requirement for domestic wares to pass the following
tests known as British Standard (B.S.) 6748 Part I
and Part 2.
BS6748 Part 1 1972
Flatware Lead = 20 ppm
(pans per million)
Cadmium = 2 ppm
Holloware -
Lead = 7ppm
Cadmium = 0.7 ppm
Storage Vessels or any Holloware over 1100
millilitres capacity - Lead = 2 ppm
Cadmium = 0.2 ppm
The test involves exposure to 4% acetic acid
(vinegar) at room temperature for 24 hours.
Holloware is defined as 'Any article in which the ratio
of height to diameter is equal to, or exceeds one half.
Flatware refers to plates, saucers and dishes.
BS6748 Part 2 1972
This refers only to cooking ware, i.e. casseroles,
oven-to-tableware etc. and the testing is even more
severe, involving exposure to boiling acetic acid
(vinegar) for two hours followed by a cooking period
of 22 hours. The limits specified are as follows:
All shapes
Lead - 7 ppm
Cadmium . 0.7 ppm
COSHH, CLAW & CHIP
The Control of Substances Hazardous to Health
Regulations 1988 (COSHH) which came into force
on Ist October 1989, and the Control of Lead at Work
Regulations 1980 (CLAW), largely replace the
Pottery Health and Welfare Special Regulations
1950. They apply to all premises (including
educational establishments as well as factories)
where pottery is made or decorated and to the
preparation and use of clays, glazes colours,
materials etc.
The Regulations are concerned with assessment
of hazards in the ceramic workplace and demand
precautions which are related to the degree of risk
involved.
The Chemicals Hazard Information & Packaging
Regulations 1993 (CHIP) introduced further labelling
and other requirements, modified by CHIP2 in 1994.
As a responsible supplier we are required to
advise customers of any significant risks involved
with the handling and use of products supplied and
to advise the protective measures required. The
information given here provides such guidance but
additional information is given in our leaflet H&S 5
enclosed. Copies available on request and tech.
data sheets.
Further practical guidance can be obtained from
the Approved Code of Practice: 'Control of
Substances Hazardous to Health in the
Production of Pottery' which is available from
HMSO ISBN 0 11 885530
Technical Information: Materials & Oxides
Mineral or
Rock source
Assigned
Formula
3401
3406
3407
3408
3409
3402
3403
3411
3412
3413
3416
3418
3419
3421
3424
3425
3426M
3428
3427
1273
1276-03
3431
3432
3440
3441
3449
3452
3454
3458
3461
3466
3467
3469
3472
3473
4502
4504
4506
4510
4512
4508
4509
4515
4517
Gibbsite
Kaolinite
Kaolinite
Kaolinite
Kaolinite
Barytes/Witherite
Basalt
Montmorillonite
Calcined Ox Bones
Synthetic
Granite Feldspar
Colemanite
Granite
Cryolite
Dolomite
Anorthosite
Orthoclase
Orthoclase
Albite
Fireclay N6
Fireclay T318
Flint Pebbles
Fluorspar
Magnesite
AlWOE3HWO
AlWOE2SiOW2HWO
AlWOE2SiOW2HWO
AlWOE2SiOW2HWO
AlWOE2SiOW2HWO
BaCOE
Alumina Hydrate
Ball Clay (ESVA)
Ball Clay (Hyplas)
Ball Clay HVA/R
Ball Clay AT
Barium Carbonate
Basalt
Bentonite
Bone Ash
Calcium Chloride
China Clay
Colemanite
Cornish Stone
Cryolite
Dolomite
Feldspar Lime
Feldspar Potash
Feldspar FFF
Feldspar Soda
Fireclays 1273-01 & 03
Fireclay
Flint
Fluorspar
Magnesite
Magnesium Carbonate
Nepheline Syenite
Quartz (silica)
Rutile
Soda Ash
Sodium Silicate 140°Tw
Talc
Tin Oxide
Whiting
Zinc Oxide
Zircon
Chromium Oxide
Cobalt Oxide
Copper Oxide
Red Iron Oxide
Yellow Ochre
Black Iron Oxide
Iron Spangles
Manganese Dioxide
Nickel Oxide
Nepheline Syenite
Quartz
Rutile
Mica
Cassiterite
Limestone/Chalk
Smithsonite/Calamine
Zircon Sand
Chromite
Smaltite
Malachite
Haematite
Limonite
Haematite
Magnetite
Pyrolusite
Burnsenite
AlWOE5SiOW7HWO
CaE(POR)W
CaClW6HWO
AlWOW2SiOW2HWO
2CaO.3BWOE5HWO
NaWAlFY
CaCOE.MgCOE
CaO.AlWOE2SiOW
KWO.AlWOE6SiOW
KWO.AlWOE6SiOW
NaWO.AlWOE.6SiW
AlWOE.2SiOW2HWO
AlWOE.2SiOW2HWO
SiOW
CAFW
MgCOE
MgCOE (pure)
(NaK)WO.AlWO3.5SiOW
SiOW
TiOW
NaWCOE
NaWSiOE
3MgO.4SiOW.HWO
SnOW
CaCoE
ZnO
ZrSiOR
CrWCOE
CrWCOE
CuO
FeWOE
FeWOE.HWO
FeO
FeEOR
MnOW
NiO
Formula
Weight
SiO
TiO
156.00
258.00
258.00
258.00
258.00
198.00
528.00
310.00
111.00
258.00
412.00
210.00
184.00
278.00
556.00
556.00
524.00
258.00
258.00
60.00
78.00
84.00
84.00
472.00
60.00
80.00
106.00
12.00
479.00
150.00
100.1
81.00
183.00
153.00
166.00
143.00
160.00
178.00
72.00
232.00
87.00
74.00
50.20
71.00
62.70
52.00
48.60
46.60
4.50
72.90
0.73
52.00
72.30
66.80
69.50
54.20
65.00
98.00
2.00
2.80
60.70
98.00
0.80
51.80
0.20
36.00
-
1.00
1.60
1.50
1.00
1.60
0.07
0.02
1.25
0.60
95.20
0.80
0.28
0.20
-
Typical Percentage Chemical Anlysis
AlO
FeO
CaO
MgO
56.00
32.50
19.00
24.80
30.00
14.10
38.30
0.10
14.93
0.06
27.00
15.00
19.00
18.50
29.30
24.10
23.40
0.80
0.07
7.10
-
1.00
0.70
0.90
2.60
11.20
0.38
0.04
0.13
1.25
0.50
0.12
0.12
0.14
2.10
1.70
0.20
0.07
0.07
0.80
0.07
1.66
0.03
0.60
-
0.20
0.10
0.20
0.30
7.90
0.33
26.00
2.06
31.25
14.00
0.15
0.30
0.15
0.27
1.10
2.00
0.80
0.70
0.21
55.60
0.30
-
0.30
0.40
0.30
0.60
10.30
0.25
2.00
0.09
19.88
0.15
0.10
0.15
1.06
0.50
93.60
0.10
32.16
0.14
-
NaO
KO
0.30
0.30
0.30
0.40
2.40
0.30
4.00
2.90
2.13
5.00
8.10
0.09
0.86
9.80
-
2.00
1.70
2.30
3.10
6.00
0.68
3.81
0.50
9.30
8.40
2.50
2.94
0.80
4.60
-
Others
44.00 HWO
12.50
Loss
5.50
Loss
7.10
Loss
9.20
Loss
0.10
MnO
44.00 BWOE
46.00
Loss
0.40
Loss
0.40
Loss
8.53
Loss
6.50
Loss
93.00 CaFW
0.90 ZrOW
43.70
Loss
63.00
Zr
-
ALL QUOTED PERCENTAGES, QUANTITIES AND MEASUREMENTS ARE APPROXIMATE
67
SECTION 10
Product Material
No.
Technical Information: Clays (Analyses, Shrinkages, etc.)
ANALYSIS
CLAY BODY
Manf.
Code
SECTION 10
1102 Ox St Thomas
1104M Red St Thomas
1106 Wh St Thomas
1106-30WB
1108 New Farnham Pink
1109 Flecked S'ware
1110 S'ware throwing
1111 Red S'ware
1112 Ivanhoe
1113 Camberwell
1114M Craft Crank
1117 Buff S'ware
1120 Buff Body
1121 Buffstone
1123 Special HT
1124 School Clay
1127 Grogged Pink
1129 St Pauls
1130 Choc. Black
1131M Keuper Red
1131-40M Sanded Red
1134 Grogged Red
1135 Red S/E
1136 Roche Red
1137 Std Red
1137-30 Gr.Red
1138 Ivory
1141-30 Grogged White
1141-LT25 Studio White
1141-S20 Grogged White
1142 White S'ware
1143M Draycott
1144 Semi Porcelain
1144-115 White E'ware
1145 White S'ware
1146 Porcelain
1147 Porcelain
1148 Bone China
1149 H.F.Porcelain
1150 Mod/Thr Clay
1153 Industrial Crank
1154 Raku
1514 Lavafleck
1161 T material
1161Y Y Material
68
S&P
S
S
P
P
P
P
P
P
S
P
S
S
S
S
S
P
P
P
S
S
P
S
S
S
S
S
S
S
S
S
S
S
P
S
S
S
S
P
P
P
P
S
S
SIO2
TIO2
Al2O2 Fe2O2 MnO CaO
62.3
62.0
58.0
58.0
60.0
62.4
62.4
60.5
62.0
59.0
61.3
58.2
65.2
64.8
61.8
65.8
60.0
62.6
54.8
58.4
58.8
56.9
58.1
57.9
58.5
58.4
67.2
68.6
67.6
67.8
61.9
61.5
68.5
68.4
63.2
65.0
60.9
29.0
60.2
69.0
60.6
55.0
63.0
0.9
1.0
0.9
0.9
0.7
1.4
1.3
1.3
1.3
0.8
0.9
1.3
1.2
1.3
0.6
0.8
0.9
1.3
0.8
0.2
0.2
0.8
0.8
0.4
0.1
1.7
0.9
1.0
1.3
23.8
22.7
30.0
30.2
24.0
24.4
24.5
25.8
26.0
29.1
26.3
26.6
20.8
21.2
26.8
21.0
23.2
20.8
17.2
20.4
20.2
20.6
18.5
17.4
16.4
17.1
19.6
19.6
19.2
20.4
26.8
24.8
19.4
19.3
26.2
22.9
27.4
16.8
28.2
20.0
26.5
28.6
22.4
2.2
2.3
1.0
1.0
2.1
1.3
1.2
2.5
2.8
2.0
2.8
1.8
1.5
1.4
1.0
1.4
5.4
3.3
8.8
8.6
8.5
8.8
9.1
8.7
9.7
9.4
0.8
0.7
0.7
0.7
0.7
0.8
0.5
0.5
0.7
0.4
0.4
0.2
0.3
0.8
2.8
2.5
1.7
0.5
1.1
0.3
0.3
1.2
0.3
0.2
0.2
0.5
0.3
0.4
0.2
0.7
0.6
0.6
0.6
0.6
0.7
5.2 0.8
0.7
0.7
0.8
0.1 0.8
0.7
0.7
0.7
0.3
0.1
1.8
0.1
0.2
2.2
0.3
0.2
0.15
0.4
0.4
- 23.1
1.8
0.2
0.4
0.6
0.4
-
32.8
0.8
-
56.1
0.6
0.5
0.5
0.5
0.8
0.5
0.4
0.4
1.0
0.3
0.1
-
-
K2O
Na2
Ign
Loss
0.5
0.4
0.3
0.3
0.5
0.3
0.3
0.3
0.2
0.4
0.3
0.9
0.3
0.3
0.3
0.3
0.3
0.4
0.2
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.7
0.6
0.3
0.6
0.2
0.2
0.7
0.8
0.3
0.2
0.2
0.45
0.2
0.4
0.3
0.9
0.3
1.2
1.2
1.2
1.2
1.8
1.8
1.6
1.6
1.4
1.4
1.4
2.2
1.8
1.8
1.2
1.7
0.7
1.8
1.2
0.8
0.8
1.2
0.9
0.1
0.1
0.1
2.4
2
1.8
1.9
1.7
1.8
2
1.9
1.6
3.2
2.3
1.34
1.9
1.9
1.2
2.3
1.8
0.6
1
0.6
0.6
0.4
0.6
0.6
0.5
0.7
0.6
0.6
0.1
0.7
0.8
0.4
0.7
0.8
0.8
0.9
0.9
0.9
1.2
1.2
1
1
1
1.2
1.5
1.5
1.5
0.5
0.4
1.4
1.6
0.5
0.9
0.7
1.22
0.7
0.3
0.8
0.2
0.7
8.01
8.4
7.8
7.7
9.1
7.6
7.6
7.3
5.1
6.5
5.8
8.7
7.9
7.8
7.7
7.7
9.6
8.2
10.2
10.7
10.6
9.4
11.3
12.5
12.5
12.5
7
6.6
6.5
6.5
6.8
7.8
6.8
6.8
6.4
6.1
7
8.8
6.8
5.4
6.4
6.5
7.8
-
-
-
MgO
-
Total
Shrinkage
1100°C
8% 11%
9% 11%
11%
10%
9% 11%
9% 12%
9% 12%
9% 12%
9% 9%
9% 10%
9% 9%
9% 12%
10% 12%
10% 12%
10% 12%
9% 12%
9% 11%
10%
12%
10% 13%
10% 13%
9% 12%
11%
11%
11%
10%
11% 14%
9% 13%
9% 14%
9% 11%
12%
10% 12%
9% 14%
9% 14%
12%
14%
14%
14%
14%
9% 13%
9%
10%
12%
8%
8%
CONTENT
Other % grog
Therm
Fire
1200°C Exps’n clays & grade
0.32
0.31
0.31
0.31
0.32
0.32
0.32
0.32
0.32
0.31
0.31
0.32
0.32
0.31
0.32
0.32
0.33
0.32
0.34
0.34
0.34
0.34
0.34
0.34
0.34
0.34
0.36
0.36
0.36
0.36
0.32
0.32
0.36
0.36
0.32
0.31
0.31
0.36
0.31
0.33
0.32
0.31
0.32
0.30
67
29
35
12
10
19
28
79
69
80
60
65
15
66
62
13
33
20
17
16
10
35
46
60
25
27
61
69
65
52
75
89
80
44
44
57
16
25
10
35
21
79
67
100
28
26
67
67
100
83
78
50
60
77
66
85
63
50
51
96
30
63
35
66
100
12
8
10
68
6(30s)
10(30s)
20(40s)
35(22s)
13(30-d)
11(40s)
12(40s)
10(60s)
37(60s)
28(30s)
42(20s)
8(85s)
6(85s)
10(40s)
5(120s)
14(30s)
21(20s)
18(30s)
10(40s)
20(30s)
6(30s)
10(40-d)
17
5(90)
49(200s)
70(200s)
42(30s)
32(20s)
10(20s)
32(20s)
TEXTURE
1=smooth
10=coarse
Medium 4-5
Medium 4
Medium 5
Medium 6
Medium 4-5
Medium 4
Medium 3-4
Smooth 3
Smooth 3
Medium 6
Coarse 8
Smooth 2
Smooth 1
Smooth 1
Smooth 1
Medium 4
Medium 6
Medium 6
Smooth 1
Smooth 1
Medium 3-4
Medium 6
Smooth 1
Smooth 1
Smooth 1
Medium 3
Smooth 1
Medium 3
Smooth 1
Medium 4
Smooth 1
Smooth 1
Smooth 1
Smooth 1
Smooth 1-2
Smooth 1
Smooth 1
Smooth 1
Smooth 1
Smooth 1
Coarse 8
Coarse 7-8
Medium 4-5
Coarse 7-8
Coarse 7-8
FIRED COLOUR
(Oxidation)
Speckled Buff
Warm Buff
Off-white grey
Off-white
Toasted Buff
Off-white
Off-white
Toasted Buff
Buff brown
Buff
Brown Buff
Buff Grey
Light Buff
Light Buff
Off-white
Light Buff
Pink/Buff
Speckled Red Br
Chocolate Black
Light Rustic Red
Light Rustic Red
Red Terra Cotta
Red Brown
Light Red Brown
Red Brown
Red Brown
Ivory White
White
White
White
White off-white
Off-white
White
White
White off-white
White
White
Ultra White
White
Light Ivory/Buff
Brownish Buff
Brownish Buff
Lt Buff, Dap.Br
Off-white
Off-white
Vitrification
point°C
1260-1280
1250-1280
1280-1300
1280-1300
1250-1280
1260-1300
1260-1300
1260-1290
1250-1280
1170-1300
1280-1320
1240-1270
1250-1290
1250-1290
1250-1300
1260-1290
1180-1260
1200-1240
1110-1160
1180-1200
1190-1220
1160-1220
1130-1170
1140-1170
1100-1130
1100-1180
1170-1220
1180-1220
1180-1200
1180-1220
1250-1280
1240-1270
1200-1220
1180-1220
1250-1280
1260-1280
1240-1280
1200-1250
1250-1280
1250-1280
1280-1320
1280-1320
1250-1280
1280-1320
1200-1300
FIRING
RANGE
°C
1140-1285
1150-1280
1160-1300
1170-1300
1150-1275
1160-1290
1160-1290
1160-1290
1130-1260
1170-1300
1170-1300
1160-1290
1110-1285
1120-1280
1220-1300
1110-1285
1130-1270
1120-1220
1040-1150
1080-1270
1090-1270
1040-1200
1050-1170
1060-1170
1040-1160
1040-1180
1100-1180
1100-1240
1100-1200
1110-1250
1220-1300
1200-1290
1100-1260
1100-1160
1200-1300
1220-1290
1250-1290
1200-1250
1220-1295
1120-1275
1210-1300
Over 900C
1200-1280
1200-1300
1200-1300
SLIP RECIPE
to 10kg clay
3459/2
Dispex
Water
cc
cc
40
20
50
900
900
900
80
20
20
60
80
1400
900
900
900
1500
60
100
40
40
900
1000
950
950
60
1000
30
40
40
50
20
40
40
900
900
900
900
900
1000
900
40
20
900
900
10
10
40
900
900
900
60
100
1102
1104
1106
1106-30WB
1108
1109
1110
1111
1112
1113
1114
1117
1120
1121
1124
1127
1129
1130
1131
1131/40
1134
1135
1136
1137
1137-30
1138
1141-30
1141-LT25
1141-520
1142
1143
1144
1144-115
1145
1146
1147
1148
1149
1150
1153
1154
1155
1161
1161Y
Index
39
33
40
40
8
8
8
8
33
33
33
21
21
41
41
45
12
60
B
Badger Airbrushing Equipment 33
Ball Clay
21
- ESVA
21
- HV
21
- Hymod AT
21
- Hyplas
21
Barium Carbonate
21
Basalt Lava
21
Batt Wash
21
Bentonite
21
Bin Dolley
40
Biscuit Tile
34
Bisque
30
Blungers
49
Bone Ash
21
Borax
21
Botz Low Temperature Glazes:
Brush on
17
Botz Stoneware Glazes
20
Botz Unidekor Colours
27
Bow Harp
37
Bow Trimmer
37
Bowls
43
Boxwood Modelling Tools
35
Brushes from Royal and Langnickel
31, 32
Buckets
41
Buff Sand No3, No4
23
Buff Stopping
23
C
Calcinated Alumina
Calcined China Clay Grogs
Calcium Chloride
Calipers
Cane Handles
Casserole Pots
Castellated Discs
Castellated Props
Casting Slips
- Suitability Chart
Ceramic Café
Ceramics
Ceramics and Glass Books
Chameleon Glass Kiln by L&L
Change-over Switch
Chicken and Basket
China Clay (Kaolin)
Chromium Oxide
Clay Cutters
Clay Selection
Clock Movements and
Thermometers
Cobalt Carbonate
Cobalt Oxide
Coilers
Colmanite (Boro-Calcite)
21
8
21
39
39
43
63
63
9
9
30
30
65
58
60
43
21
24
37
2
40
24
24
37
21
Coloured Decorating Slips
Coloured Earthenware Bodies
- Chocolate Black
- Grogged Red
- Keuper Sanded Red
- New Keuper Red
- Original Red S/E
- Red Earthenware Terracotta
- Sanded Red
Coloured Earthenware Glazes
Compensating Cable
Cone Viewer
Consistency Measurement
Contemporary Studios
Contents
Copper Carbonate (Cupric
Carbonate)
Copper Compounds
Copper Oxide (Cupric Oxide)
Cornish Stone
COSHH, CLAW & CHIP
Courses, Seminars & Training
Crank Clays
- Crank Craft
- Grogged Pink
- Industrial Crank
- Ivanhoe
- Premium Crank Craft
- Sculpture Crank
Cristobalite
Cruet Stoppers
Cup Lawns
Cups and Saucers
9
6
6
6
6
6
6
6
6
11
61
41
12
30
1
24
24
24
21
66
30
6
6
6
6
6
6
6
21
39
39
43
D
Damp Storage Cabinet
Deflocculants
Delivery
Digital Indicator
Dipping Tongs
Djanting Needle
Dolomite
Double Tip Texture Roller
Drying Cabinets
Ducting
Dust Problems
50
21
54
62
39
39
21
37
51
52
66
E
Earthenware Clay Bodies
4
Earthenware Fired
5
Egg Cup
43
Electric Kilns
- EasyFire Range
56
- EP Series
56
- Etruscan Top Loading Studio
Electric Kilns
54
- Firemaster
55, 62
- Fuego
56
- Gold Series
56
- Hobbymaster
55, 62
- Plug and Go Kilns
56
- Silver Top Loading Electric Kilns
manufactured by Potclays
55
- Zonemaster
55
Electrically Operated Truck Kilns 58
Electronic Balance
40
Electronic Bench Scales
40
Element Winding Service
61
Element Wire
61
Elements Sets
60
Etruscan Range
53
Extension Rings
59
Extraction-ventilation canopies 60
F
Face Mask
Feldspar
Ferric Chromate
41
21
24
Ferric Oxide
Ferrous Oxide
FFF Feldspar
Fine Sand No.2
Firebird Range
Firebrick Grogs
Firing Overglaze Colours
Firing Rate
Firing Temperatures
Flatware
Flint
Folding Trolley
Forged Steel Modelling Tools
Forshammer Feldspar
Frits and Glazes
- Economy Glazes
- Translucent Glazes
- Transparent Glazes
- White Opaque Glazes
Funnels
24
24
22
23
29
8
29
2
2
66
22
40
36
22
10
10
10
10
10
41
G
Galena
22
Gallon Mixer
49
Gas Burner Kit
59
General Purpose Bowls
41
General Purpose Medium
22
Gerstley Borate
21
GK and EP Ranges
53
Glaze and Bisque Cutter
39
Glaze and Body Stains
24, 25
Glaze Binder/Hardener
22
Glaze Hydrometer
38
Glaze Preparation
12
Glaze Suitability
2
Glaze Suspension
12
Goblets-Wine Carafe
43
Gold Eraser
29
Gold Fluid Writer
29, 34
Gram Scales
40
Greenware Seamline Cleaner
36
Grinding Medium
50
Grolleg China Clay
21
Guarantee and Maintenance
54
Gum Arabic
22
H
Haematite
Handling of Materials
Heat Fuse
Hessian Squares
High Density Plaster
Hi-Pur Grogs
Hobby Slip
Hole Cutters
Holloware
Hose Adaptor
Hot Glass
24
66
60
38
22
8
30
37
66
33
30
Kelvar Mitt
Kemper Clean-up Brush
Kemper Clean-up Tool
Kemper Cut-out Tool
Kemper Wire Cutter
Kiln Batts Care and Use
- Testing and Storage
- Batt Wash
- Thermal Shack
Kiln Furniture Sets
Kiln Guard
Kiln Spares
Kiln Vapours and Gases
Kiln/Room Ventilation
Klay Gun
41
36
36
36
37
63
63
63
63
60, 63
60
60
66
60
38
L
L&L Vent-Sure powered vent
Lace Tool
Laser Kilns
Latex Based Mask
Lepidolite
Letter and Number Stamps
Lidded Bowl
Limestone
Lining Wheel
Lithium Carbonate
Locating Pins
Lost Wax Kilns by Potclays
Low Solubility - Definition & Test
Low-Fire Cone 06-04 Glazes
Lucy Tool
Lustres
60
36
59
23
22
39
43
22
34
22
45
58
66
15
36
29
M
Magnesium Carbonate
22
Magnesium Sulphate
22
Maintenance Service
61
Manganese Carbonate
24
Manganese Dioxide
24
Manufacturing Code
2
Marbling Solution
29
Matting Agent
22
Maximum Firing Temperature
2
Mayco Low Temperature Glazes:
Brush on
16
Measuring Jugs
41
Mending broken greenware
23
Metal Release Problems
66
Metal Release Test
66
Micron Air Compressor
33
Mini Spray Gun Set
33
Mixing Powdered Medium
29
Momentum Potters Wheel
45
Mortar and Pestle
39
Mouldmaker's Size
22
Moulds To Order
30
N
Needles (Fine & Thick)
Nepheline Syenite
Nichrome Wire
Nickel Oxide
Non-fired Products
North Star Extruder
37
22
64
24
30
48
22
54
60
60
60
43
45
24
I
Ilmenite
Inflammable Liquids & Materials
Installation
Interlocking Extension Props
Iron Chromate
Iron Compounds
Iron Oxide
Iron Oxide-black
Iron Oxide-red
Iron Oxide-red synthetic
22
66
54
64
24
24
24
24
24
24
J
Jar Mills
Jars and Jar Adaptors
Jugs
50
33
43
O
Opacifiers
Ordering
Orton Cones
Orton Hood Vent
Orton Kiln Vent
Oval Dish
Oxford Potters Wheel
Oxides
K
Kelvar Guantlett Mitt
41
P
Paint Your Own Pottery Studios 30
Painting Media
22
Pallette Knives
34
Pearl Ash K2CO3
22
Plant Pots
42
Planters
42
Plaster Moulds
42
Plastic Blended Clay Bodies
4
Plastic Blended Clays
2
Plastic Knife
36
Plates
43
Porcelain
7
- Casting Porcelain
7
- DL Porcelain
7
- JB Porcelain
7
- Southern Ice Porcelain
7
- Bone China
7
- China Clay
21
- Cool Ice Porcelain
7
- HF Porcelain
7
Potash Feldspar
21
Potter's Knife
36
Potter's Plaster
22
Powdered Clay Bodies
8
- Buff Body
8
- Chocolate Black
8
- H.F. Porcelain
8
- Low Temperature White e-ware 8
- Porcelain
8
- White Earthenware
8
- White Stoneware
8
- Stoneware
8
Pre-coated Decal Paper
29
Preparation of Colours
29
6
Printing Sticks
39
Propellant
33
Propellant Regulator
33
Pugmills Standard
46
Pugmills with Safety Switch
46
Q
Quartz
Quest White Bentonite
22
21
R
Raku
6
- Coarse Raku
7
- Smooth Raku
7
- Gas Kilns
59
- Tandoori
7
- Tongs
40
Raw Materials
8
- WAD Fireclay N6
8
Rayefco Craftsman Wheel
45
Rayefco Fitzwilliam Potters Wheel45
Reactive Glazes
13
Recipe Amendments
2
Refractory Insulation Bricks
64
Resist
22
Respirator
41
Rolling Guides
38
Rolling Pins (Small and Large) 38
Rotary Glaze Sieve
39
Rotary Sieve
50
Rubber Kidney Palettes
38
Rutile
22, 24
S
Sack Truck
Saddles/Pins
Safety Goggles
Salt and Pepper
Salt and Pepper Drill
School Balance with weight set
Scoops
Screen Printing Medium
Sedimentation Tank
Selecting Clays
40
64
41
43
36
40
41
29
51
2
Sgrafitto Tool
36
- Fork
36
- with Brush
36
Shimpo
44
- Lever Pedal
44
- Remote Pedal
44
- Whisper
44
- NRA and NVA Pugmills
47
Sieves (Lawns)
39
Silica
22
Silica Sands
22
Silicon Carbide SIC
23
Silver Range
53
Slabrollers
48
Slip Casting Unit
51
Slip Pump
51
Slip Sieve
39
Slip Trailer
39
Smooth Throwing Stroneware
6
- Flecked Stoneware
6
- Stoneware Body
6
Soda Ash. Sodium Carbonate
23
Soda Feldspar
21
Sodium Deflocculant
23
Sodium Dispex
23
Sodium Silicate
23
Sorting Tool
39
Spare Dies
49
Spare Elements
60
Spare Filter Cartridge
52
Spare Third Wheel
40
Spectrum Glaze Crystals
19
Spectrum High Temperature Glazes:
Brush on
18
Spectrum Low Temperature Glazes:
Brush on
17
Spectrum Raised Accent Colours 26
Spectrum Superwriter Pens
26
Spectrum Underglazes
27
Sponges
38
Spray Gun Set
33
Spray Kit
52
Spraybooth and Stand
52
Stainless Steel Cutter
37
Star Stilts
64
Steel Palettes
38
Stilts
64
Stoneware Clay Bodies
5
Stoneware Fired
4, 5
Stoneware Glazes
13, 14
Storage Bottles
41
Storage Jar
42
Strip Tools
37
Sugar Bowl
43
T
Talc
Talisman 2 Potters Wheel
Talisman Extruder
Tankards
Teacher's Coat
Teapots
Technical Information
Technical Support
Thermocouples
Thor Kilns
Throwing Ribs
Tile and Pin Cranks
Tile Cutters
Tin Dioxide
Tin Oxide (Stannic Oxide)
Tool Kit
Tray Moulds
Triple Beam Balance
Tubular Base
Tubular Collar
Tubular Props
Turning Tools
23
45
48
43
41
43
67,68
30
61
59
38
64
38
23
23, 24
38
42
40
64
64
63
37
Turpentine (Pure)
Twisted Wire Cutter
29
37
U
Underglaze Application Methods 28
Underglaze Colours
24 - 25
Underglaze Medium
22, 29
Underglaze Pencils
26
Useful Data
70
Using Cones
60
V
Vanadium Pentoxide
Velvets
Venco
- De-airing Pugmills
- SUPER-twin
- Direct Drive Potters Wheel
Vent/Spyhole Plugs
Vibratory Sifter
24
28
47
47
47
45
64
50
W
Wad Box
49
WAD N6 Fireclay (Plastic)
22
Wax Emulsion Resist
23
Wet Back Spraybooth
52
Wheelbats
45
Whirlers
34
- Aluminium
34
- Cork Faced
34
- Heavy
34
- Steel
34
White Earthenware
7
- Grogged White
7
- Ivory Earthenware
7
- Semi Porcelain
7
- Studio White Earthenware
7
7
- T Material
7
- White Crank
7
- Y Material
7
White Sand No.1
23
White Stoneware
7
- Modelling Clay
7
- New Draycott White Stoneware 7
- Paper Clay
7
- White Special Stoneware
7
White Stopping
23
Whiting
23
Wine Carafe
43
Wipe Out Tool
34
Wire Modelling Tools
35
Wollastonite (Calcium Silicate) 23
Wood Ash
23
Wooden Taps
39
Z
Zinc Oxide
Zircon (Zirconium Silicate)
Zirconium Oxide
23
23
23
SECTION 10
A
Abrasive Block
Accessories
Adhesive Felt
Adjustable Bin Trolley
Air Hardening Clay
- Newclay Hardener
- Gloss Finish
- Newclay
Air Hose (Braided)
Air Hose (Vinyl)
Airbrush set
Alumina Hydrate
Alumina Hydrate (granular)
Anti-Glare Safety Glasses
Aprons
Artisan Potters Wheel
Artistic Glazes
Automatic Damper
69
Useful Data
Important Elements
Conversion Factors
Name
Melting
Symbol Atomic
Weight Point
Aluminium
Antimony
Barium
Boron
Cadmium
Calcium
Carbon
Chromium
Cobalt
Copper
Gold
Hydrogen
Iron
Lead
Lithium
Magnesium
Manganese
Nickel
Nitrogen
Oxygen
Potassium
Praseodymium
Selenium
Silicon
Sodium
Strontium
Sulphur
Tin
Titanium
Vanadium
Zinc
Zirconium
Al
Sb
Ba
B
Cd
Ca
C
Cr
Co
Cu
Au
H
Fe
Pb
Li
Mg
Mn
Ni
N
O
K
Pr
Se
Si
Na
Sr
S
Sn
Ti
V
Zn
Zr
26.970
121.760
137.360
10.820
112.410
40.080
12.010
52.010
58.940
63.570
197.200
1.008
55.850
207.210
6.940
24.320
54.930
58.690
144.008
16.000
39.096
140.920
78.960
28.060
22.997
87.630
32.066
118.700
47.900
50.950
65.380
91.220
660
630
704
22.50
321
852
3550
1831
1492
1084
1063
-257
1526
327
186
649
1242
1455
-210
-219
64
941
220
1415
98
772
116
232
1798
1722
419
1856
SECTION 10
Molecular Weights:
Some ceramic materials
Alumina
101.9
China Clay 258.1
Cornish Stone678.4
Barium Carb. 197.4
Dolomite
184.4
Feldspar Po. 556.5
Feldspar Soda524.3
70
Flint & Quartz
Lead Bisil.
Titanium Diox.
Talc
Whiting
Zinc Oxide
Zircon
60.1
343.3
80.0
380.1
100.1
81.4
183.3
To convert from
by
into
ozs
gm
lbs
kg
cwts
kg
tons
tons
ozs/pint
ozs/yd2
in2
ins
cm
feet
ft3 cubic feet
ft3 cubic feet
gm
28.35
ozs
0.0353
kg
0.4536
lbs
2.2046
kg
50.803
cwts
0.0196
kg
1016.2
tonnes
1.016
0.05
gm/cm2
gm/m2
33.9
cm2
6.4516
cm
2.54
ins
0.3937
metres
0.3048
litres
28.317
in3
1728
multiply
Volume
1m3
1 litre
1cc
1 yard3
1 imp. gallon
1 pint
1 litre
1ft3
Dry content of one pint of clay
slip at various pint weights
Slip weight Dry content SG
(ozs/pint)
(ozs)
20
0.00
1.0
21
1.67
1.05
22
3.33
1.1
23
5.00
1.15
24
6.67
1.2
25
8.33
1.25
26
10.00
1.3
27
11.67
1.35
28
13.33
1.4
29
15.00
1.45
30
16.67
1.5
31
18.33
1.55
32
20.00
1.6
33
21.67
1.65
34
23.33
1.7
35
25.00
1.75
36
26.67
1.8
37
28.33
1.85
38
30.00
1.9
39
31.67
1.95
Brongniart’s Formula
= 1000 litres
= 35.31ft3
= 1000cc
= 0.3531ft3
= 1000mm3
= 27ft3
= 0.76m3
= 4 quarts
= 8 pints
= 4.56 litres
= 1.205 US gallons
= 20 fluid ozs
1.2 US pints
= 0.5683 litres =568cc
= 0.2199 gallons
= 1.7598 pints
= 35.196 fluid ozs
= 0.2642 US gallons
= 2.1132 US pints
= 1000 cc
= 61.025 in3
=0.0353ft3
=28.317litres
= 0.028m3
= 6.237 gallons
= 7.481 US gallons
Temperature
To convert oC into oF:
multiply by 9/5 and add 32
To convert oF intooC:
deduct 32 and multiply by 5/9
(p-20) x g
g-1
where: W =ozs of dry material in one pint
of slip
g = specific gravity of dry material
(usually 2.5 for clays)
p = pint weight in ozs of one pint
of slip
W=
Casting Slip Recipes Most clays can be made
into casting slip as follows:
Using Plastic Clay:
10 kg plastic clay
10-25g Sodium Sil.140o
10g Soda Ash
1200cc water
Using Powdered Clay:
10kg powdered clay
12-30g Sodium Sil.140o
12g Soda Ash
4000cc water
Alternatively, Sodium Dispex can be used instead
of sodium silicate and soda ash.
Ounces
1
=
2
3
4
5
6
7
8
9
10
11
12
16
Grams
28.4
56.7
85.0
113.0
141.7
170.1
198.4
226.8
255.1
283.5
311.8
340.2
453.6
Pints
0.5
1.0
1.5
2.0
2.5
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
B.S. Standard Sieves
(Seive number is apertures per linear
inch)
Sieve No.
Aperture in mm
300
0.053
120
0.124
100
0.152
80
0.191
=
Litres
0.3
0.6
0.9
1.1
1.4
1.7
2.3
2.8
3.4
4.0
4.6
5.2
5.7
Sieve No.
60
40
30
20
10
Ounces
per pint
10.0 =
20.0
26.0
27.0
28.0
29.0
30.0
32.0
33.0
34.0
35.0
36.0
37.0
Aperture in mm
0.251
0.388
0.500
0.750
1.676
grams
per litre
498
996
1295
1345
1395
1445
1494
1594
1643
1693
1743
1793
1843
Notes
71
Notes
72
Contents
Potclays Ltd, Stoke-on-Trent, Hobby Ceramics Showroom.
Potclays Ltd., Brickkiln Lane, Etruria, Stoke-on-Trent, ST4 7BP England
Junction 16
A500 'D'
to Congleton
to Leek
TUNSTALL
Road
A50
BURSLEM
to Preston
& North
A5009
A34
A53
to Ashbourne
Potclays
HANLEY
City Centre
NEWCASTLE
A34
Founded over 60 years ago, the Group now comprises the holding company, Potclays Limited, and two
subsidiaries: The Potters Clay & Coal Co. Ltd. and Forward Transport Ltd. Harry Fraser Ltd. was merged into
the company in 1976, H.&.L Kilns Ltd in 1983 and D.J.Shaw in 1992. The group is a relatively small one
employing about 50 people.
The Company operates from three sites. The main clay mine and clay production base is at Brownhills, South
Staffordshire (‘Swan Works’). Raw material processing and grog manufacture is at ‘Valley Works’ in Etruria and
other material processing, glaze manufacture, kiln manufacture, warehousing, retail shop, showroom and main
offices is located at ‘Albion Works’, Etruria, Stoke-on-Trent.
FENTON
Hobby ceramics.
LONGTON
M6 Motorway
A500
In addition to the craft ceramics products in this catalogue we are also major
suppliers to the hobby ceramics market. We are distributors for the renowned
brush-on colours, glazes and stains from Mayco Colors and also for Scioto
moulds who have probably the largest range in the USA. In addition we stock
many moulds. We also manufacture 'Potclay White' hobby ceramic casting slip
which is now a market leader, and we have a wide range of tools and accessories.
HANFORD
Junction 15
TRENTHAM
to Derby
& Uttoxeter
to Birmingham
Potclays Kilns.
We manufacture both top loading and front loading kilns, either electrically
operated or gas fired and built to the highest standards. Kilns are made not only
for the firing of ceramics but also burn-off kilns for lost wax investment casting and
kilns for metal enamelling and glass work. A high proportion are specially built to
customer's specification.
Potclays Courses & Seminars.
How to find us:
Visitors from the North should leave the A500 at the
A53 junction, turn right and first left.
Visitors from the South should leave the A500 at the
A53 junction then turn left and first left again. Lorry
access is only via Brickkiln lane entrance which is
reached from the Shelton New Road junction with
the A500.
Tel: 01782 219816
Seminars are held regularly and include a very wide range of topics. They are well
suited to technicians and teachers in ceramic education and to potters,
tilemakers, handbuilders etc. both beginners and experienced.
Separate seminars are held for hobby ceramists and for doll makers which
provide a variety of decorative techniques using brush-on colours and glazes on
greenware and bisque.
Please contact us for further details.
For full details please ask for a leaflet. Details can also be found on our Web Sites.
www.potclays.co.uk and www.potclays-ceramic-cafe.co.uk
Fax: 01782 286506
Email: sales@potclays.co.uk

Clays, Glazes, Kilns, Machinery & Equipment . . . 2008 £3.00

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