Ceramic Glaze Terminology

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Ceramic glaze terminology.

Throwing creating ceramic shapes on the potter s wheel. Wedging a method of kneading clay to make it homogenous by cutting and rolling. Pertaining to the hard finish of a fired glaze or the nonabsorbency of a fired body. Learn the meanings to hundreds of common pottery glaze and craft terms.

Glazes are the protective coatings that make ceramics safe and useful. Transparent glaze transmits light clearly. Plasticity a workable property of clay that enables it to take and hold any impression. Overglaze a glaze applied on top of another glaze.

It was developed by the chinese over 1000 years ago. Often times it is a clear glossy glaze applied over a matte glaze to make it glossy. When purchasing ceramic pieces it is important to consider the type of glaze in terms of food safety durability and fit with the underlying claybody. Widely used and misused term referring to any earthenware pottery glazed with an opaque glaze usually white and overglaze decoration.

An iridescent optical appearance due to light reflections producing diffraction patterns on a glazed surface. Ceramic glaze is an impervious layer or coating of a vitreous substance which has been fused to a ceramic body through firing. See also claybody glaze fit high temp glaze intermediate glaze low temp glaze. Long tapered knife useful for trimming cast or pressed pieces and for separating mold components.

Throwing the term used when referring to forming or shaping on a potter s wheel. Porcelain a pottery ware that when fired is pure white. Duncan inkit 1 envision glaze kit for ceramics set of 12 best selling colors in 4 ounce jars with free how to paint ceramics booklet 79. It also gives a tougher surface.

Or low sol glaze. Underglaze decoration applied to biscuit pottery and covered with a glaze. 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.

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. Stoneware all ceramic wear fired between 2 100 and 2 300 degrees.