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A refractory material that increases the viscosity of glazes
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RM-ALU
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OM-4 is a fine-grained ball clay with excellent plasticity and strength
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RM-BALL
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A source of barium oxide for glazes.
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RM-BAR
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A colloidal clay of volcanic origin that increases plasticity of other clays.
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RM-BEN
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A source of calcium and phosphate. A plasticizer for clay bodies.
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RM-BON
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A low-fire flux, but small amounts in high-fire glazes can help a glaze melt more smoothly.
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RM-BOR
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Chrome oxide is a refractory ceramic colorant. It is a bright to dark green crystalline powder insoluble in alkalis and acids.
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RM-CHR
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It is a strong colorant and almost always produces blue in glazes.
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RM-COBCA
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It is a metallic coloring oxide that produces blue in glazes at all temperatures.
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RM-COBOX
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RM-COPCARB
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Helps form tough, hard glazes.
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RM-COR
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A natural source of magnesium and calcium oxides.
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RM-DOL
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Feldspars vary in composition and availability, with some containing potash, and others, soda.
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RM-FELCU
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Feldspars vary in composition and availability, with some containing potash, and others, soda.
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RM-FELF4
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Feldspars vary in composition and availability, with some containing potash, and others, soda.
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RM-FELG2
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Hawthorne Bond Fire Clay fires a light color with approximately 10% shrinkage at cone 10. Ground to 35 mesh.
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RM-FIRHB
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Soft sodium borosilicate frit for glazes.
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RM-FR3110
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This borosilicate frit is high in calcium which means it will affect browns and iron oxide colors.
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RM-FR3124
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This is a popular frit and has been used for many years.
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RM-FR-3134
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This frit is very high in boron and fluid.
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RM-FR3195
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Gerstley Borate use in glazes as a secondary flux at mid range and often as primary one at low fire and raku
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RM-GER
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Cedar Heights Goldart is a selectively mined, plastic stoneware clay which is airfloated.
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RM-GOL
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Grog is used mainly as a clay body addition to control drying and fired shrinkage and to open the body.
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RM-GRCO
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Grog is used mainly as a clay body addition to control drying and fired shrinkage and to open the body.
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RM-GRFIN
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Grog is used mainly as a clay body addition to control drying and fired shrinkage and to open the body.
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RM-GRMED
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RM-IRCHRO
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Black iron is used as a colorant for a wide range of non-ceramic products.
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RM-IROXBL
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Red iron oxide is the most common colorant in ceramics.
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RM-IROXRE
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RM-IROXSP
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EPK Kaolin is among the whitest-firing and most plastic of the North America kaolins.
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RM-KAOEPK
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