Zinc containing glasses and enamels

An opaque, fired enamel composition that is lead-free, cadmium-free, bismuth-free, tantalum-free and antimony-free, the enamel composition comprising, prior to firing an organic vehicle and a solids portion, wherein the solids portion comprises a frit portion, wherein the frit portion comprises, prior to firing:

• a. 10-80 wt % of a glass frit, the frit comprising
• i. 39.74 to 47.72 wt % SiO2,
• ii. 12.7 to 22.56 wt % B2O3,
• iii. 8.89 to 12.73 wt % TiO2,
• iv. 0.54 to 13.36 wt % ZnO,
• v. 1.72 to 2.17 wt % Li2O
• vi. 0.67 to 17.57 wt % K2O, and
• vii. 3.08 to 4.02 wt % F,
• viii. 0.58 to 1.41 wt % Al2O3,
• ix. 0 to 1.27 wt % ZrO2,
• x. 0 to 12.01 wt % Na2O,
• b. a separate and distinct addition of 0.1-30 wt % pigment, and
• c. 0.1-15 wt % of a crystalline material selected from the group consisting of zinc borates, zinc silicates, zinc titanates, aluminum silicates, and combinations thereof,
• wherein, after firing, the enamel composition exhibits performance of chemical durability against wet through deterioration of at least 24 hours when tested in 0.1N H2SO4 at 80° C.