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kiln wash

Posted On December 8, 2008 0 Comments
Refractory slip coating applied to top surface of kiln shelf to protect from glaze runs. For all but salt and wood firings, 50-50 kaolin and silica. For salt and wood, 60% alumina, 30% kaolin, 10% ball clay. Source: Clay: A Studio Handbook

kiln sitter

Posted On December 8, 2008 0 Comments
Automatic shutoff device mounted on many electric kilns; accepts a small-size pyrometric cone, and shuts off kiln when cone deforms. Source: Clay: A Studio Handbook

kiln furniture

Posted On December 8, 2008 0 Comments
Refractory shelves, posts, and stilts used in a kiln to support the wares. Source: Clay: A Studio Handbook

kiln

Posted On December 8, 2008 0 Comments
A specialized oven or furnace used for firing clay for pottery. Source: Clay: A Studio Handbook

keys; registration marks

Posted On December 8, 2008 0 Comments
In plaster slip-casting molds, small rounded depressions carved in each parting face of a mold segment, so that when adjacent segments are cast a corresponding bump will form. In use, the keys allow the mold segments to be aligned and assembled securely after the original prototype is removed. Source: Clay: A Studio Handbook

keramos

Posted On December 8, 2008 0 Comments
Greek term meaning earthenware from which the word ceramics is derived. Source: Clay: A Studio Handbook

kaolinite

Posted On December 8, 2008 0 Comments
Crystalline clay mineral forming the basis of most clays we use in ceramics. Source: Clay: A Studio Handbook

kaolin; china clay

Posted On December 8, 2008 0 Comments
Al2O3×2SiO2×2H2O—Primary clay that fires pure white, very refractory, coarse particle size, low plasticity, high-temperature—major component of porcelain and some whiteware bodies.  See EPK, Grolleg, Helmer, Tile-6. Source: Clay: A Studio Handbook

kanna

Posted On December 8, 2008 0 Comments
Japanese trimming tool, formed of a steel strap bent and sharpened on the ends. Source: Clay: A Studio Handbook

kaki

Posted On December 8, 2008 0 Comments
High-fired Japanese saturated iron glaze usually containing at least 10% (of dry-batch weight) iron oxide, which produces iridescent microcrystalline rust red. See tessha. Source: Clay: A Studio Handbook