Ceramic - Pottery Dictionary

by Susan Mussi

FLUX - An essential ingredient for glazes.



Flux: One of the essential ingredients of a glaze that can cause fusion and melting in glazes and glass. Usually the most influential of the glaze materials, it dictates the gloss and color of a glaze. Oxides such as iron, sodium, potassium, calcium, zinc, lead, boric oxide, and others combine with the silica and other heat resistant materials in a glaze, helping them to fuse.