Ceramic Glaze Terminology

Glaze can serve to color decorate or waterproof an item.

Ceramic glaze terminology.

Wedging a method of kneading clay to make it homogenous by cutting and rolling. It also gives a tougher surface. Long tapered knife useful for trimming cast or pressed pieces and for separating mold components. Throwing creating ceramic shapes on the potter s wheel.

Glaze is also used on stoneware and porcelain. Ceramic glaze is an impervious layer or coating of a vitreous substance which has been fused to a ceramic body through firing. An iridescent optical appearance due to light reflections producing diffraction patterns on a glazed surface. Throwing the term used when referring to forming or shaping on a potter s wheel.

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. Overglaze a glaze applied on top of another glaze. Glazing renders earthenware vessels suitable for holding liquids sealing the inherent porosity of unglazed biscuit earthenware.

Transparent glaze transmits light clearly. Glazes are the protective coatings that make ceramics safe and useful. Without the fired surfaces the ware would not be able to hold water or be safe for food. Learn the meanings to hundreds of common pottery glaze and craft terms.

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. 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. 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. See also claybody glaze fit high temp glaze intermediate glaze low temp glaze.

Porcelain a pottery ware that when fired is pure white. Widely used and misused term referring to any earthenware pottery glazed with an opaque glaze usually white and overglaze decoration. Stoneware all ceramic wear fired between 2 100 and 2 300 degrees. It was developed by the chinese over 1000 years ago.

14 99 unicorn spit 5770013 gel stain glaze weathered daydream 4 ounce bottle grey 172. Vitrification the firing of pottery to the point of glossification. Plasticity a workable property of clay that enables it to take and hold any impression.