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Abstract
Application of a silane coupling agent as a means of bonding melamine foil to an unsaturated, mineral-filled polyester substrate in the form of a molded dinner plate, 25.4 cm in diameter, was investigated. Bonding was achieved which was satisfactory from industry standards, but the adhesion promoter, a glycidoxypropyltrimethoxysilane, migrated through the foil thickness and deposited an unacceptable residue which caused topical cosmetic failure of the molded plate.