CERAMIC PRINTED GLASS
Ceramic printed on glass is done with special enamels which are applied to glass before it is tempered. During the heating process in tempering this enamel fuses into the glass and becomes a monolithic construction.
It is thus, a permanent printing or coating and has all technical/mechanical characteristics of the unprinted glass. It is lifelong and does not deteriorate with weather, detergents, normal acids or alkalis.