Patent ID: 7396499

Claim:
A process for preparing a multi-layer article, comprising the steps of: (a) placing a substrate in a mold, and wherein said substrate alone is first pre-cured to an incomplete state of cure in said mold at a temperature of 75 to 125 C. (b) an uncured fluoroelastomer layer of up to about 0.3 mm thickness is placed on said pre-cured substrate of step (a) and said layers are cured together in said mold at a temperature of 150 to 225 C to form an intermediate article, and (c) removing said intermediate article of step (b) from said mold and curing it in an oven at a temperature of 100 to 150 C such that the cross linking of the layers forms a permanent bond between said substrate and said fluoroelastomer layer and thereby forming said multi-layer article.