We prefer to use inorganic, ceramic colors: environmentally friendly pigments of metal oxides, mixed with glass powder and a small amount of solvent. The latter burn in the heat treatment; pigments and glass powder enamel with the base glass.
The result: prints that tolerate up to 300° C and are infinitely UV-resistant. Compared to organic lacquers, vitreous enamel is ten times more scratch-resistant and exhibits a hundredfold higher adhesive strength after hot storage.
So why do we use organic paints? Because, for example, aluminium silicate glass cannot be thermally hardened and thus cannot be enameled. Similarly, glass that has already been tempered – whether thermally or chemically – can only be printed with organic paints.