Abstract: A process is disclosed for the production of metal sheets enamelled with two layers, wherein the sheet is coated, before shaping, with a polymer suspension. The sheet is then dried and shaped, and optionally is coated with an enamel frit. The sheet is then fired at a temperature of 560 to 850 degrees C. The binder in the polymer suspension is preferably a material which burns completely at melting and stoving temperature.

Abstract: Black glass pastes for edging glass windows in automobiles comprise ground, lead-containing modified borosilicate glass which has sulfides or polysulfide fused therein, black ground pigment and a carrier medium which is liquid at room temperature or higher, is produced by fusing a mixture of lead-containing borosilicate glass, powdered carbon and metal sulfides an sulfur powder or the resulting frit together with black pigments to a particle fineness of less than 10 .mu.m and mixing the ground product with a carrier medium which is liquid at room temperature or elevated temperature, thereby forming a paste.

Abstract: A high-temperature heating element useful as the heating means in baking ovens, washing machines, water heaters, toasters and dishwashers comprises an enamelled metal substrate and an overlying multilayer system consisting of an inner layer of an insulating glass, metallic conductor lines and an outer layer of a surface glass, wherein said multi-layer system is joined to the enamelled metal substrate by an intermediate layer.