Ceramic Glaze Terminology

Overglaze a glaze applied on top of another glaze.

Ceramic glaze terminology.

Underglaze decoration applied to biscuit pottery and covered with a glaze. Pertaining to the hard finish of a fired glaze or the nonabsorbency of a fired body. Throwing creating ceramic shapes on the potter s wheel. Glaze is also used on stoneware and porcelain.

Transparent glaze transmits light clearly. 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. Plasticity a workable property of clay that enables it to take and hold any impression.

Wedging a method of kneading clay to make it homogenous by cutting and rolling. Widely used and misused term referring to any earthenware pottery glazed with an opaque glaze usually white and overglaze decoration. Learn the meanings to hundreds of common pottery glaze and craft terms. An iridescent optical appearance due to light reflections producing diffraction patterns on a glazed surface.

Often times it is a clear glossy glaze applied over a matte glaze to make it glossy. See also claybody glaze fit high temp glaze intermediate glaze low temp glaze. Glazes are the protective coatings that make ceramics safe and useful. Glaze can serve to color decorate or waterproof an item.

14 99 unicorn spit 5770013 gel stain glaze weathered daydream 4 ounce bottle grey 172. Stoneware all ceramic wear fired between 2 100 and 2 300 degrees. Without the fired surfaces the ware would not be able to hold water or be safe for food. It was developed by the chinese over 1000 years ago.

Long tapered knife useful for trimming cast or pressed pieces and for separating mold components. Vitrification the firing of pottery to the point of glossification. Or low sol 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.

Throwing the term used when referring to forming or shaping on a potter s wheel. It also gives a tougher surface. 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.