VITREA FLOW COMPOSITION, ENAMEL COMPOSITION, ARTICLE WITH AN ENAMEL COMPOSITION ON ITS SURFACE AND METHOD OF APPLYING AN ENAMEL COMPOSITION ON AN ARTICLE

摘要

A glass flux composition consisting essentially by weight of 38-50% silica, 9-17% zirconium oxide, 26-50% boron oxide, 4-15% in total of sodium oxide and/or potassium oxide, 2-8% lithium oxide, 0-15% titanium oxide, 0-15% alumina, 0-10% tin oxide, 0-10% cerium oxide (calculated as CeO2), 0-10% magnesium oxide, 0-10% zinc oxide, 0-8% bismuth oxide, 0-5% calcium oxide, 0-5% lead oxide and 0-2% fluoride is useful for preparing an enamel composition especially for application to glass.