This clay is the same formula as Soldate-30, but contains finer 60 mesh sand. The texture is medium coarse. Gray in the raw form with a high sand content which makes it an ideal choice for large thrown pieces and sculptural forms.   Reduction ( First Image), Oxidation  ( Second Image).

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An outstanding, all-purpose, orange/brown, moist body. Has fine sand and is a difficult body to crack during firing. Durable and affordable. Good for professional or student. Reduces a warm orange/brown, lighter in oxidation. Characteristics Cone: 10 Wet Color: Red Fired Color - Oxidation Orange/Brown Fired Color - Reduction Dark Brown Texture: Medium Coarse Penetrometer Target: 7 Ave. Shrinkage 2±% 12.5% Ave. Water Absorption 1±% 0.8% COE x 10-6: 4.9

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Gray in the raw form with a medium sand texture. A popular body for general purpose use. Large and thick-walled pieces are prone to cracking. In light to medium reduction, Rod's Bod fires to a warm brown with iron specks which generally bleed into glazes forming brown specks. Reduction ( First Image), Oxidation ( Second Image). CharacteristicsCone: 10Wet Color: Light GrayFiring Color: Oxidation: Yellow/Buff - Reduction: Medium BrownTexture: Medium CoarsePenetrometer Target: 7Avg. Shrinkage 2±%: 13.5%Avg. Water Absorption 1±%: 2.4%COE x 10-6: 6

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As of October 2022, Buff Plus now uses only 40mesh fireclay and 35 mesh grog. A medium-range light stoneware body with about 9% fine grog which fires off-white to buff in oxidation and slightly darker in reduction. Flint Hills clays have been evaluated by a nationally certified toxicologist, and have been found to be in compliance with ASTM C-1023 and D-4236, and to not contain any material in sufficient quantity to be toxic or to constitute a chronic health hazard when used responsibly. RECOMMENDED VIDEO: White Stoneware Comparison by Bracker's

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A non-iron based high-fire stoneware body with about 18% grog (30 mesh flint grog). Fires to a buff color and provides a good background for glazes. Suitable for high-fire throwing, sculpture, and handbuilding as well as raku and primitive firing methods. Flint Hills clays have been evaluated by a nationally certified toxicologist, and have been found to be in compliance with ASTM C-1023 and D-4236, and to not contain any material in sufficient quantity to be toxic or to constitute a chronic health hazard when used responsibly. RECOMMENDED VIDEO: Stoneware White with Grog by Bracker's

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White, Low Fire, Talc-Free Sculpture clay body. We developed this body as a replacement for our Earthenware White Plus. We also recommend this as an alternative to the Flint Hills Raku clay (when used for sculpture or handbuilding purposes). It contains both fine grog and sand, so it's ideal for handbuilding, but can be thrown also. It's just a tad off-white in color at 04. For best glaze results and a whiter color, bisque fire a bit hotter, to Cone 01. The body is still porous enough to accept low-fire glazes and the increase in bisque temperature will not be noticeable in energy costs or element life. Flint Hills clays have been evaluated by a nationally certified toxicologist, and have been found to be in compliance with ASTM C-1023 and D-4236, and to not contain any material in sufficient quantity to be toxic or to constitute a chronic health hazard when used responsibly.

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A low fire red clay with about 18% grog (30 mesh flint grog) that fires to a light red-orange color at cone 06 to 05, and a richer, deeper red color when fired hotter, up to about a cone 2. Flint Hills clays have been evaluated by a nationally certified toxicologist, and have been found to be in compliance with ASTM C-1023 and D-4236, and to not contain any material in sufficient quantity to be toxic or to constitute a chronic health hazard when used responsibly.

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A low fire red clay with approximately 10% fine mesh silica sand and approximately 5% fine mesh grog that fires to a light red-orange color at cone 06 to 05, and a richer, deeper red color when fired hotter, up to about a cone 2. During the summer of 2020, we completed a comprehensive test of our clay bodies. For each clay body, we tested 6 flat bars, which were rolled out on a slabroller. We ALSO tested vertical shrinkage of a thrown cylinder (6 sections, each with their own test) beginning weights in grams were recorded the lines and weights were measured & recorded when bone dry The samples were fired to Cone 04 lines and weights were measured & recorded again The flat tiles were then soaked in hot water for 1 1/2 hours, then weighed again Math magic was then done to calculate the average shrinkage wet-dry and average shrinkage overall for both flat and thrown tests, and the average water absorption was calculated based on the flat bars. We also figured the "LOI" (Loss on Ignition) by computing the fired weight against the bone dry weight. This tells us what percent of organics burn off in the firing. Flint Hills clays have been evaluated by a nationally certified toxicologist, and have been found to be in compliance with ASTM C-1023 and D-4236, and to not contain any material in sufficient quantity to be toxic or to constitute a chronic health hazard when used responsibly. RECOMMENDED VIDEO: Red Clay Comparison by Bracker's

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A high fire red clay with medium grog and sand for surface texture and minimal cracking and warping. Designed for sculpture, slab, and coil work. Cone 6 Average Shrinkage 10.5% Absorption 5.0% Cone 10 Average Shrinkage 12.0% Absorption 3.0% Images of clay are fired to Cone 10 Reduction - Cone 6 - Cone 10 

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Semi-smooth red body with sand and grog. Fires paver tile red in oxidation and chocolate in reduction. ***Oxidation ( First Image), Reduction ( Second Image). CharacteristicsCone: 5Wet Color: RedFiring Color: Oxidation: Tile Red - Reduction: ChocolateTexture: Slightly CoarsePenetrometer Target: 6.75Avg. Shrinkage 2±%: 10%Avg. Water Absorption 1±%: 2%

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A pliable clay with smooth grog. Great for sculpture (use a high gloss glaze when making dinnerware). Color comes from manganese and iron. Fires almost black when in oxidation. It is not recommended to fire this clay in reduction. ***Do not fire past Cone 5 Oxidation ( First Image), Reduction ( Second Image). CharacteristicsCone: 5Wet Color: Red/BrownFiring Color: Oxidation: Brown/Black - Reduction:BlackTexture: Slightly CoarsePenetrometer Target: 6.75Avg. Shrinkage 2±%: 10%Avg. Water Absorption 1±%: 3%

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Winter Wind is a reformulation of the Flint Hills Cone 5/6 Porcelain. You should not notice a difference in workability or glaze fit. The body is almost identical, but the original included a bag of talc. We removed the talc and added a small percentage of 120mesh molochite to maintain the average shrinkage percentage in the original version. As a bonus, that addition also increases the green strength and reduces warpage a bit as well! Average Shrinkage at Cone 5: 11.53% Average Absorption at Cone 5: 4.2% Average Shrinkage at cone 04 bisque: 6.38% Average Wet to dry shrinkage 5.5%

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Has the plastic nature and glaze friendly creamy color of B-Mix with Grog and all the added qualities of paper clay. It is a great choice for sculptural vessels and has the positive throwing qualities you expect from B-Mix with Grog. Can be fired in a wide range of temperatures from cone 04 to Cone 10. Reduction ( First Image), Oxidation  ( Second Image). Characteristics Cone: 10 Wet Color: Cream Fired Color - Oxidation Off-White Fired Color - Reduction Gray-White Texture: Slightly Coarse Δ 06 Δ 5 Δ 10 Ave. Shrinkage 2±% 6% 8% 11% Ave. Water Absorption 1±% 21% 11% 5% COE x 10-6: 6.79 7.71 6.42

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Fires gray-stony-white in reduction at cone 10, off white at cone 5 oxidation, and bright white at cone 05 (raku). It is a medium textured, low shrinkage body designed for large-scale hand-built sculpture and tile work where thick cross sections (up to 1 inch) are anticipated. Contains a moderate amount of fine and medium mesh grog. Oxidation ( First Image), Reduction ( Second Image). Characteristics Cone: 06-10 Wet Color: Light Gray Fired Color - Oxidation Cool Off-White Fired Color - Reduction Dk Gray/Black Texture: Coarse Δ 06 Δ 5 Δ 10 Ave. Shrinkage 2±% 4% 8% 10% Ave. Water Absorption 1±% 21% 11% 5% COE x 10-6: 5.57 6.05 5.25

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A medium coarse clay body which exhibits excellent throwing characteristics. This material pulls up well for tall vertical forms without downward creep. Also throws well horizontally holding near flat cantilever flanges on bowls without slumping. The clay both stretches well on big bellied pots and necks as well as on pinch neck bottles. It should be noted that the fine wood fiber content of this clay makes it necessary to reduce the amount of water added to the clay during throwing. Excessive use of water will negate the forming advantages that the fiber produces in this clay. Bob's is also an excellent sculptural body with remarkable resistance to cracks and warps. It is highly grogged with a toasty color. Fires from cone 04 to cone 6. Oxidation cone 6 ( First Image), Reduction cone 6 ( Second Image). Characteristics Cone: 6 Wet Color: Dk Red/Brown Fired Color - Oxidation Buff Fired Color - Reduction Dark Brown Texture: Coarse Δ 06 Δ 5 Ave. Shrinkage 2±% 6% 9% Ave. Water Absorption 1±% 18% 10% COE x 10-6: 5.52 6.31

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Aardvark Clay's Bee Mix 5Fired Shrinkage is 12% and Water Absorption is 2.5% when fired to cone 5. Off white, very smooth and easy to throw. Great glaze fit. ⚠ WARNING - This product can expose you to crystalline silica (quartz) which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov

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Rich black, heavily grogged sculpture clay. Similar qualities to #420 Average Shrinkage - 10% Average Absorption - 1.0%

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