Primer composition containing epoxy phosphate esters, silane coupling agent, reactive end group-terminated polydiorganosiloxane, organometallic catalysts and amine hardening agents

摘要

A primer composition which contains a diluent and a film forming binder wherein the film forming binder contains a siloxane condensation catalyst, an amine hardner, a silane coupling agent and the reaction product of a polydiorganosiloxane having a reactive end group and an epoxy functional phosphate ester compound. The composition is useable as a primer on aluminum substrate.