FLUX - An essential ingredient for glazes.
ca: FUNDENT
es: FUNDENTE
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.
