Lead-free glass coatings

Details Lead-free glass coatings Lead-free glass coatings

C - Chemistry, Metallurgy

03

C

C03C 8/02 (2006.01) B05D 3/02 (2006.01) C03C 3/066 (2006.01) C03C 8/04 (2006.01) C03C 8/20 (2006.01)

Patent

CA 2105206

This invention relates to a lead-free glass coating made by firing a lead-free glass enamel composition comprising a glass frit having by weight from about 20% to about 40% zinc oxide, from about 20% to about 32% boron oxide, and from about 10% to about 30% silicon dioxide, from about 0% to about 12% titanium dioxide, from ablaut 4% to about 12% sodium oxide, from about 0% to about 10% potassium oxide, from about 0% to about 12% zirconia, up to about 4% alumina, up to about 5% lithium and up to about 5% fluorine. The lead-free glass coating exhibits excellent adhesion and improved acid resistance.

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