Polychem 7487-B-64 Polyester OPC Polymers Polyester Coatings >> Solventborne Coil Coating 150 solvent : EB POLYCHEM 7487-B-64 is an economical resin for industrial bake applications where good flexibility (2T), hardness (F) and adhesion are required. Coil backing/ Roof decking/ Conventional industrial bake enamels Polyester. Used for industrial bake applications such as coil backing, roof decking and conventional industrial bake enamels. Provides good flexibility, hardness and adhesion.