Ceramic Glaze Terminology

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Ceramic glaze terminology.

Throwing creating ceramic shapes on the potter s wheel. Without the fired surfaces the ware would not be able to hold water or be safe for food. Vitrification the firing of pottery to the point of glossification. Throwing the term used when referring to forming or shaping on a potter s wheel.

Glaze can serve to color decorate or waterproof an item. Glazing renders earthenware vessels suitable for holding liquids sealing the inherent porosity of unglazed biscuit earthenware. Often times it is a clear glossy glaze applied over a matte glaze to make it glossy. Transparent glaze transmits light clearly.

Stoneware all ceramic wear fired between 2 100 and 2 300 degrees. Overglaze a glaze applied on top of another glaze. See also claybody glaze fit high temp glaze intermediate glaze low temp glaze. Widely used and misused term referring to any earthenware pottery glazed with an opaque glaze usually white and overglaze decoration.

Pertaining to the hard finish of a fired glaze or the nonabsorbency of a fired body. Glazes are the protective coatings that make ceramics safe and useful. Plasticity a workable property of clay that enables it to take and hold any impression. Ceramic glaze is an impervious layer or coating of a vitreous substance which has been fused to a ceramic body through firing.

Underglaze decoration applied to biscuit pottery and covered with a glaze. The many types and textures of glazes that mayco offers are almost endless from bright shiny reds to soft pastels metallic gold to satiny rich black. An iridescent optical appearance due to light reflections producing diffraction patterns on a glazed surface. It was developed by the chinese over 1000 years ago.

Wedging a method of kneading clay to make it homogenous by cutting and rolling. Glaze is also used on stoneware and porcelain. Defined by the pottery health regulations as a glaze which does not release more than 5 of its dry weight of soluble lead when subjected to a specified test using hydrochloric acid. Porcelain a pottery ware that when fired is pure white.

Learn the meanings to hundreds of common pottery glaze and craft terms. It also gives a tougher surface. Long tapered knife useful for trimming cast or pressed pieces and for separating mold components.