Patent ID: 8772189

Claim:
An enamel composition comprising a solid portion comprising a frit portion, the frit portion comprising, prior to firing: about 30 to about 50 wt % of SiO 2 ; about 4.5 to about 20.2 wt % of Cs 2 O; about 6.1 to about 11.5 wt % of Na 2 O; about 6.5 to about 20.2 wt % of B 2 O 3 ; about 8 to about 25 wt % of ZnO; about 3.4 to about 12.3 wt % of TiO 2 ; about 0 to about 40 wt % of Bi 2 O 3 ; and about 0 to about 7 wt % of F.