ENAMEL APPLICATION COMPOSITION AND METHOD FOR MAKING ENAMELLED FORMED PARTS

摘要

The invention concerns a liquid composition comprising more than 50 wt. % of frit, a solvent and a thermosetting resin containing: at least a polyhydroxypolyester and/or a polyhydroxypolyacrylate whereof the OH index ranges between 3 and 100 mg KOH/g and with a molecular weight less than 100000 g/mol; at least a crosslinking agent adapted to cause the hydroxy functions of said polymers to react by transesterification or polyaddition. Said composition provides stability facilitating coating on sheet metal at room temperature, good adherence of the crosslinked coating on the sheet metal, enabling forming before vitrification of the frit.