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    Clay - Dry Clays and Chemicals

Dry Clays

Material Safety Data Sheets (MSDS) are available on CD-ROM's in PDF format. Please call 1-800-431-6067 for more details. A CD-ROM disk can be enclosed with your order upon verbal request.

  Price per Pound

Price per Pound in Full Bags

 
Item No. Description 1
lb.
5
lbs.
10
lbs.
25
lbs.
Full Bag Weight
(lbs.)
1 Bag
Up to
499 lbs.
500 to
1999
lbs.
2000+
lbs
Purchase
(Qty = Lbs.)
C-020-001 Albany Slip Substitute $1.85 $1.75 $1.65 $1.55 50 $1.30 N/A N/A
C-020-013 Alberta Slip 4.35 4.20 4.05 3.75 44 3.45 N/A N/A
C-020-022 Ravenscrag Slip 3.70 3.50 3.20 3.00 44 2.70 N/A N/A
C-020-003 Kentucky OM4 .70 .55 .45 .37 50 .33 .23 .22
C-020-006 Tennessee No. 1 (SGP) .70 .52 .37 .33 50 .18 .17 .16
  Price per Pound

Price per Pound in Full Bags

 
Item No. Description 1
lb.
5
lbs.
10
lbs.
25
lbs.
Full Bag Weight
(lbs.)
1 Bag
Up to
499 lbs.
500 to
1999
lbs.
2000+
lbs
Purchase
(Qty = Lbs.)
C-020-005 Tennessee No. 5 .75 .55 .37 .30 50 .20 .19 .18
C-020-007 XX Sagger .57 .45 .34 .29 50 .23 .21 .20
C-020-008 APG Missouri Fire Clay
(20 mesh)
1.55 1.45 1.35 .75 55 .70 .65 .60
C-020-020 Hawthorn Fire Clay
(35 mesh)
.78 .65 .51 .44 50 .22 .21 .20
C-020-011 Cedar Heights Bonding Clay .45 .30 .25 .20 100 .16 .15 .14 (no longer available - sub. Hawthorn)
C-020-010 Cedar Heights Goldart .70 .55 .37 .31 50 .23 .21 .20
C-020-012 Cedar Heights Redart .75 .55 .36 .30 50 .21 .20 .19
  Price per Pound

Price per Pound in Full Bags

 
Item No. Description 1
lb.
5
lbs.
10
lbs.
25
lbs.
Full Bag Weight
(lbs.)
1 Bag
Up to
499 lbs.
500 to
1999
lbs.
2000+
lbs
Purchase
(Qty = Lbs.)
C-020-014 EPK-Kaolin .77 .63 .47 .35 50 .26 .24 .23
C-020-015 Tile #6 - Kaolin .90 .85 .65 .60 50 .36 .35 .34
C-020-016 Georgia Kaolin Pioneer (Discontinued)
C-020-021 Georgia Diamond
(replaces Pioneer)
1.20 .80 .65 .55 50 .26 .24 .23
C-020-017 Grolleg - English Kaolin C 1.80 1.45 1.25 1.15 55 1.05 1.00 .95
C-020-018 Velvacast — — — — — — — — Discontinued

Chemicals

  Price per Pound

Price per Pound in Full Bags

 
Item No. Description
(for complete descriptions please click here)
1
lb.
5
lbs.
10
lbs.
25
lbs.
Full Bag Weight
(lbs.)
1 Bag
Up to
499 lbs.
500 to 1999 lbs. 2000+
lbs
Purchase
(Qty = Lbs.)
C-030-001

Alumina Hydrate AI(OH)3 — A source of alumina in glazes, promotes opacity and mattness and increases hardness and durability. Very refractory. Used in Kiln wash.

2.50 1.80 1.70 1.60 50 1.20 1.15 1.10
C-030-002 Alumina Oxide 3.85 3.55 2.80 2.50 55 2.40 2.35 2.20
C-030-003

Barium Carbonate BaC03 — The best way to introduce barium oxide in glazes, functions as a high temperature flux. Can produce satin matt glazes. In excess causes rough, dry glaze surface. TOXIC.

3.40 3.25 3.00 2.95 50 2.85 2.60 N/A
C-030-005

Bentonite Western (325 mesh) — A highly plastic clay used in small amounts as a plasticizer in clay bodies and a suspension agent in glazes. > 3% can cause cracking in unfired glaze due to shrinkage.

1.35 .90 .85 .65 50 .55 .50 .45
C-030-004

Synthetic Bone Ash (Di Calcium Phosphate) — Bone ash is a source of calcium phosphate. It is used as a flux in clay bodies. Also used as an opacifier in glazes and to assist in formation of opalescence (as in Chun glazes.)

2.60 2.30 2.05 1.85 50 1.55 N/A N/A
C-030-007

Burnt Umber — A hydrated ferric oxide with manganese dioxide and clay. It can be used as a slip or clay body colorant and produces a reddish-brown color.

2.35 2.20 2.05 1.90 50 1.70 N/A N/A
C-030-009 Borax (200 Mesh) Na2O•2B2O3 — Source of Boric Oxide and Soda in glazes. Small amounts can increase fluidity of a glaze; larger amounts can lower the maturing temperature. 1.95 1.35 1.25 1.20 100 1.10 1.05 1.00
C-030-010 Calcium Carbonate (Domestic Whiting C-55) CaCO3 —  Whiting is a widely used source of lime in glazes and a primary high temperature flux. .60 .55 .40 .35 50 .34 .31 .30
C-030-011 Calcium Carbonate (English Whiting Snow-Cal) CaCO3 1.35 1.25 1.15 1.10 55 1.05 1.00 .95
C-040-102 CMC Powdered Gum - Dry Form — An organic cellulose gum used in slips and glazes as a binder, thickener, and suspension agent. 5.25 5.00 4.70 4.50 N/A N/A N/A N/A
C-040-104 CER Veegum (glaze Hardener) — Used in glazes as a suspending agent, viscosity stabilizer and surface hardener. 8.60 8.00 7.30 6.85 N/A N/A N/A N/A
  Price per Pound

Price per Pound in Full Bags

 
Item No. Description
(for complete descriptions please click here)
1
lb.
5
lbs.
10
lbs.
25
lbs.
Full Bag Weight
(lbs.)
1 Bag
Up to
499 lbs.
500 to 1999 lbs. 2000+
lbs
Purchase
(Qty = Lbs.)
C-030-012

Chrome Oxide Cr2O3 — A powerful and versatile glaze colorant that can produce a variety of colors including green, yellow, pink, brown, and red.

11.60 11.00 10.65 10.30 N/A N/A N/A N/A
C-030-013

Cobalt Carbonate CoCO3 — Used as a slip and glaze colorant, produces various shades of blue or purples where manganese is present. Due to fine particle size, it is more easily dispersed in glazes than cobalt oxide.

33.00 N/A N/A N/A N/A N/A N/A N/A
C-030-013-1/2

Cobalt Carbonate CoCO3
Now Available in 1/2 lb. Bags

20.50
(1/2 lb.)
N/A N/A N/A N/A N/A N/A N/A
C-030-014

Cobalt Oxide Co3O4 — Cobalt oxide is the most powerful ceramic pigment available. Used in slips and glazes in very small amounts, it produces strong blue colors.

42.00 N/A N/A N/A N/A N/A N/A N/A
C-030-014-1/2

Cobalt Oxide Co3O4
Now Available in 1/2 lb. Bags

26.00
(1/2 lb.)
N/A N/A N/A N/A N/A N/A N/A
C-030-029

Copper Oxide, Red Cu2O — Made by heat treating Black Copper Oxide. Red Copper is insoluble in water, making it more difficult to work with.

11.55 10.50 9.30 8.35 N/A N/A N/A N/A
C-030-015

Copper Carbonate CuCO3 — A versatile, fine particle glaze and slip colorant which can produce greens, blues, or reds depending upon glaze composition and firing conditions.

6.90 6.60 6.30 6.05 N/A N/A N/A N/A
C-030-016

Copper Oxide, Black CuO — More concentrated than copper carbonate, it is a strong colorant and flux.

13.15 12.70 11.95 11.60 50 11.00 N/A N/A
C-030-017

Cornwall Stone SUBSTITUTE — An English feldspathoid used as a flux in clay bodies and as a major constituent in glazes.

4.00 3.50 3.35 3.00 55 2.90 2.75 N/A
C-030-018

Dolomite (Limestone) CaMg(CO3)2 — Dolomite is a naturally occurring mineral that contains calcium carbonate and magnesium carbonate. It is used as a flux in high temperature glazes wherever both magnesia and lime are required.

.75 .60 .50 .35 50 .19 .16 .16
C-030-019

Feldspar, Custer (325 mesh) — A potash feldspar used in both clay bodies and glazes. It can function as a flux or as a refractory depending upon formula and firing temperature.

.95 .85 .70 .60 50 .28 .27 .26
C-030-020

Feldspar, G-200HP (Potash) — A potash feldspar used in glazes and clay bodies.

1.30 1.15 1.00 .90 50 .40 .38 .36
C-030-021

Feldspar, Kona F4 (Soda) — A soda feldspar used in clay bodies and glazes where a sodium flux is required.

                Discontinued
see substitute below (Minspar 200)
C-030-068

Feldspar, Minspar 200 – substitute for KONA F4 (must test)

.83 .67 .53 .42 50 .36 .35 .34
  Price per Pound

Price per Pound in Full Bags

 
Item No. Description
(for complete descriptions please click here)
1
lb.
5
lbs.
10
lbs.
25
lbs.
Full Bag Weight
(lbs.)
1 Bag
Up to
499 lbs.
500 to 1999 lbs. 2000+
lbs
Purchase
(Qty = Lbs.)
C-030-022

Frit, Ferro 3110 (leadless, 200 mesh) — Frits are combined raw materials that are mixed, fired, melted, crushed and ground into a powder. The reason for fritting is to render soluble materials insoluble; decrease toxicity of raw materials such as lead, barium and zinc; reduce fusion point of glazes; and to avoid volatilization of unstable substances.

2.00 1.95 1.75 1.50 50 1.25 N/A N/A
C-030-023

Frit, Ferro 3124
(leadless, 200 mesh)

1.80 1.70 1.50 1.45 50 1.40 N/A N/A
C-030-024

Frit, Ferro 3134
(leadless, 200 mesh)

1.95 1.90 1.70 1.55 50 1.40 N/A N/A
C-030-025

Frit, Ferro 3195
(leadless, 200 mesh)

2.20 2.15 2.05 1.95 50 1.65 N/A N/A
C-030-026

Frit, Ferro 3269
(leadless, replaces 3819)

2.00 1.95 1.85 1.75 50 1.50 N/A N/A
C-030-027

Frit, Ferro 5301
(leadless, 200 mesh)

2.75 2.70 2.50 2.25 50 2.10 N/A N/A
C-030-030

Gerstley Borate 2CaO•3B2O3•5H2O — A sodium/calcium/borate compound used as a flux in glazes. It is used to introduce boric oxide in an insoluble form and as a more stable substitute for colemanite.

1.80 1.55 1.40 1.30 50 1.20 1.15 1.10
C-030-031-F

Grog - Fine (48 mesh & finer) — Ground, fired clay added to clay bodies to improve workability and strength and to give texture. The addition of grog also reduces shrinkage, warpage, and cracking in drying and firing.

1.00 .91 .81 .56 50 .45 .43 .41
C-030-031-M

Grog - Medium (20-48 mesh)

1.41 1.23 1.19 .79 50 .53 .49 .46
C-030-031-C

Grog - Course (12-20 mesh)

1.38 1.20 1.16 .76 50 .60 .59 .58
Now Available!
C-030-067

Hydrocal - A neutral gypsum cement that is harder and less porous than pottery plaster. Preferred when strength and durability are more important than water absorption. (50lbs. Minimum Order)

— — — — 50 .47 .43 .41
C-030-032

Ilmenite Powder (200 mesh) FeO•TiO2 — The ore of titanium and iron: a combination similar to rutile but with more iron. Powdered Ilmenite is used to modify other colorants in glazes and produce subtle speckled effects in clay bodies and glazes.

1.85 1.75 1.65 1.55 100 1.45 N/A N/A
C-030-033

Ilmenite Granular FeO•TiO2—
The ore of titanium and iron: a combination similar to rutile but with more iron. Granular ilmenite is used to produce speckled effects in clay bodies and glazes.

1.70 1.50 1.40 1.30 50 1.20 N/A N/A
  Price per Pound

Price per Pound in Full Bags

 
Item No. Description
(for complete descriptions please click here)
1
lb.
5
lbs.
10
lbs.
25
lbs.
Full Bag Weight
(lbs.)
1 Bag
Up to
499 lbs.
500 to 1999 lbs. 2000+
lbs
Purchase
(Qty = Lbs.)
C-030-034

Iron Oxide (Spanish Red) Fe2O3 — Ferric oxide. Generally used as a colorant in clays and glazes where iron is required. Red iron has a finer particle size than black iron which makes it disperse more easily in a glaze. In mid-high temperature ranges iron oxide will act as a flux, noticeably lowering the firing range of glazes.

1.65 1.55 1.50 1.45 55 1.40 1.35 1.30
C-030-055

Iron Oxide (Black) FeO — Ferric oxide. Produces the same range of colors as red Iron oxide when used in glazes but is preferred by many potters when making Celadon glazes for Reduction firing.

5.60 5.05 4.75 4.30 N/A N/A N/A N/A
C-030-134

Iron Chromate FeCrO4 — Form of Iron usually used when darker browns and red-browns are desired.

1.30 1.20 1.15 1.10 100 .95 N/A N/A
C-030-035

Lithium Carbonate Li2CO3 — A slightly soluble source of lithium. When used as a flux in glazes it can extend firing range, reduce thermal expansion, and promote brilliant colors.

11.35 10.70 9.65 9.30 100 7.80 N/A N/A
C-030-036

Magnesium Carbonate MgCO3 — This is used in glazes as a source of magnesium oxide. A refractory as low temperatures, it becomes as active flux at high temperatures. It produces matt surfaces , increases glazes viscosity, and improves adhesion of glaze to clay.

5.40 5.05 4.70 4.50 44 4.45 4.00 N/A
C-030-037

Manganese Dioxide (325 mesh) MnO2 — A fine particle ceramic colorant which usually produces browns in glazes but can give purples in combination with cobalt or alkaline fluxes.

3.10 2.90 2.85 2.80 100 2.75 2.70 2.55
C-030-060

Molochite (30 mesh) — A white porcelain grog. Reduces shrinkage, warpage, and cracking, while maintaining color in white clay bodies.

2.05 1.85 1.70 1.60 110 1.50 1.40 1.35
C-030-142

Molochite (50-80 mesh)

2.00 1.80 1.65 1.55 55 1.45 1.35 1.30
C-030-062

Molochite (120 mesh)

1.60 1.50 1.35 1.25 55 1.20 1.15 1.10
C-030-061

Molochite (200 mesh)

2.20 2.05 1.85 1.70 50 1.60 1.55 1.50
  Price per Pound

Price per Pound in Full Bags

 
Item No. Description
(for complete descriptions please click here)
1
lb.
5
lbs.
10
lbs.
25
lbs.
Full Bag Weight
(lbs.)
1 Bag
Up to
499 lbs.
500 to 1999 lbs. 2000+
lbs
Purchase
(Qty = Lbs.)
C-030-038

Nepheline Syenite (Peak 270) K2O•Na2O•4AI2O3•9SiO2 — A useful substitute for feldspar, nepheline syenite melts at a lower temperature. It is widely used as a flux in both clay bodies and glazes.

.90 .65 .55 .45 50 .26 .24 .23
C-030-039

Nickel Carbonate (purified) NiCO3 — When used alone as a glaze colorant, nickel carbonate usually produces greenish or brownish grays.

28.00 26.00 24.00 19.00 N/A N/A N/A N/A
C-030-040

Nickel Oxide (Black) Ni2O3 — Reverts to Green Nickel at around 1100°F when used in a glaze producing very similar results.

33.10 30.00 28.10 25.55 50 25.00 N/A N/A
C-030-140

Nickel Oxide (Green) NiO — More concentrated than nickel carbonate, nickel oxide is used in small percentages to produce mute colors in glazes. It is refractory and can raise the maturing temperature of glazes if used in large amounts.

40.00 37.00 36.00 34.00 N/A N/A N/A N/A
C-042-107

Nylon Fibers (Dupont 105) — A fiber which can be added to clay bodies to increase wet strength. Especially useful for handbuilding large slab forms, the fibers create an inner structure in the clay allowing for easier handling of larger slabs. The fibers are approximately 1/2" long and burn out during firing.

8.90 7.70 7.30 7.00 N/A N/A N/A N/A
C-030-041

Ochre, Yellow — An iron oxide ore used as a colorant in slips, clay bodies, and glazes. Produces colors similar to iron oxide.

2.05 2.00 1.95 1.85 N/A N/A N/A N/A
C-030-064

Petalite

1.80 1.65 1.55 1.40 50 1.25 N/A N/A
C-030-042

Plaster, Pottery (Georgia Pacific K-59) — The standard of the industry, equivalent to No. 1 Pottery Plaster. Recommended for most slip casting applications for strong, long-lasting molds.

(Sold by Full Bag Only) 50 1-9 bags
$14.50 each
10-39 bags
$14.00 each
40+ bags
$13.50 each
  Bags:
C-030-043

Potassium Carbonate (Pearl Ash)

4.30 3.85 3.60 3.30 55 3.10 N/A N/A
C-030-044

Pyrophyllite Al2O3•4SiO2•H2O — A hydrated aluminum silicate used in clay bodies to decrease thermal expansion, shrinkage, and cracking and to extend firing range.

1.80 .65 .55 .45 50 .31 .30 .29
C-030-045

Rutile, Ceramic Grade TiO2 — A natural ore containing titanium dioxide and a small amount of iron. Used as a slip and glaze colorant, rutile produces creams, tans and browns in oxidation and various bright oranges and blues in reduction. 

4.68 4.50 4.16 3.62 50 3.46 N/A N/A
  Price per Pound

Price per Pound in Full Bags

 
Item No. Description
(for complete descriptions please click here)
1
lb.
5
lbs.
10
lbs.
25
lbs.
Full Bag Weight
(lbs.)
1 Bag
Up to
499 lbs.
500 to 1999 lbs. 2000+
lbs
Purchase
(Qty = Lbs.)
C-030-046

Silica Sand — A very coarse form of silica used to add texture and strength to clay bodies.

1.20 1.00 .45 .40 50 .35 .33 .31
C-030-047

Silica (Flint, 325 mesh) SiO2 — The fundamental constituent of glazes and component of clay and other ceramic raw materials. Used in glazes, flint will raise the maturing temperature, increase the viscosity of melt, and increase hardness and craze-resistance. The addition of silica to clay bodies makes the fired clay harder and more durable and improves glaze fit.

.62 .60 .52 .42 50 .21 .20 .19
C-030-048

Silica (Flint, 400 mesh) SiO2

.90 .70 .65 .55 50 .28 .27 .26
C-030-065

Silica (Flint, 200 mesh) SiO2

.65 .55 .50 .35 50 .24 .22 .21
C-030-141

Silicon Carbide (250 mesh) SiC — In powdered form, used as a glaze ingredient for special effects such as crater glazes and localized reduction.

4.50 4.00 3.75 3.55 N/A N/A N/A N/A
C-030-063

Silicon Carbide - Ultrafine (1000 mesh) SiC — Specially fine-ground for improved dispersion. 

31.00 23.00 N/A N/A N/A N/A N/A N/A
C-030-049

Soda Ash Na2CO3 — Sodium Carbonate. Frequently used as a soluble deflocculant in slip-casting bodies, it increases strength and reduces shrinkage.

1.80 1.35 1.20 1.05 50 .90 .80 .79
C-030-050

Spodumene Li2O•AI2O3•4SiO2 — A lithium feldspar used in glazes to reduce shrinkage and lower vitrification temperature. In clay bodies it decreases thermal expansion.

2.15 1.55 1.45 1.30 50 .95 .92 N/A
C-030-8

Strontium Carbonate SrCO3 — A glaze flux similar to Whiting which promotes more craze and scratch resistant glaze surfaces. 

2.50 2.35 2.25 2.20 50 2.15 N/A N/A
 

Superpax (Opacifier) ZrO4• SiO2

Replaced by Zircopax Plus
C-030-052

Talc (Nytal 100, 325 mesh) 3MgO•4SiO2•H2O — Useful as a flux in low temperature clay bodies and in glazes at both high and low temperatures. Also functions as an opacifier in glazes and reduces thermal expansion. Limited Availability

                Discontinued
C-030-059

Talc, Texas 3MgO•4SiO2•H2O – Replaces Nytal Talc which is no longer being mined. Grey in the raw state but fires white. A source of Magnesia in glazes as well as an active flux in both glaze and low fire clay bodies. Talc reduces thermal expansion in glazes and acts as an opacifier. It is also used as a major component in low-fire white clay bodies to provide green strength and plasticity. Test all of your existing recipes as the results may not be identical to those formulated with Nytal Talc.

 .74 .60 .44 .32 50 .23 .21 .20
C-030-053

Tin Oxide SnO2 — Dependable and widely used as a glaze opacifier. It has a refractory effect on glazes and can increase craze resistance.

31.30 31.30 31.30 31.30 100 Call N/A N/A
  Price per Pound

Price per Pound in Full Bags

 
Item No. Description
(for complete descriptions please click here)
1
lb.
5
lbs.
10
lbs.
25
lbs.
Full Bag Weight
(lbs.)
1 Bag
Up to
499 lbs.
500 to 1999 lbs. 2000+
lbs
Purchase
(Qty = Lbs.)
C-030-054

Titanium Dioxide TiO2 — Used primarily as an opacifier in glazes, titanium dioxide produces matt surfaces.

5.80 5.65 5.40 5.35 50 5.30 N/A N/A
C-030-069

Ultracal 30 - Plaster
USG description: Ultracal 30 plaster is traditional tooling gypsum cement specially formulated for close tolerance tooling. It is ideal for casting molds. It features exceptional hardness and accuracy, as well as the lowest expansion of any rapid-setting gypsum cement and is recommended where extreme accuracy and surface hardness are required. The plaster requires 38 parts water by weight per 100 parts plaster, and after machine mixing, it sets in 25-35 minutes.
(Sold by Full Bag Only)  

— — — — 50 .52 .50 .48
C-040-103

Veegum-T — An iron-free colloidal magnesium aluminum silicate used as a plasticizer-lubricant in white clay bodies. A good binder for extruder bodies. It can also be used as a suspending agent for glazes.

8.35 7.55 7.10 6.75 N/A N/A N/A N/A
C-030-056

Volcanic Ash (Pumice) — A naturally occurring, fine particle material used in glazes to replace feldspar and flint. Single color changes may result from the iron oxide content of the ash.

2.05 1.85 1.75 1.60 50 1.20 N/A N/A
C-030-010

Whiting CaCO3

(see Calcium Carbonate) 
C-030-057

Wollastonite — A naturally occurring calcium silicate; wollastonite is used in both clay bodies and glazes to reduce drying and firing shrinkage and improve fired strength.

1.05 .95 .90 .85 50 .80 .75 .70
C-030-058

Zinc Oxide ZnO — Generally used as a flux in high temperature glazes, zinc oxide lends opacity and encourages crystal growth when used in large amounts. 

5.15 4.75 4.55 4.30 55 4.00 3.55 3.40
C-030-051

Zircopax Plus (opacifier) ZrSiO4 — Current substitute for Superpax and original Zircopax. A fine-particle zirconium silicate used as a glaze and slip opacifier. Disperses very easily. Substitutes 1:1 for Superpax; may require less when substituted for original Zircopax.

8.81 7.85 7.10 6.10 50 6.00 N/A N/A

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