Patent ID: 6365232
Filing Date: 2002-04-02
Classification: B05D,Y10T

Abstract:
A process for making a metallic bond tool having a protective release coating for adhesively bonding metallic and advanced composite components, the process comprising:providing a metallic bond tool having at least one metallic bonding surface for receiving elements of a metallic or advanced composite component to be adhesively bonded together by being subjected to elevated temperatures and pressure; and applying a ceramic reinforced polytetrafluoroethylene release coating to said metallic bonding surface by first applying to said metallic bonding surface a priming coat by spraying thereon a polytetrafluoroethylene solution containing a dispersed ceramic material, thereafter applying a second coating comprising a polytetrafluoroethylene solution after said priming coating has been dried, wherein the drying of the priming coat includes permitting the priming coating to air dry for a predetermined period of time and thereafter subjecting the primer coated metallic bond tool to an elevated temperature for a predetermined period of time sufficient to force dry said priming coating without materially adversely effecting the metal characteristics of the metal bond tool, and thereafter applying a third coating comprising a polytetrafluoroethylene solution while the second coating has not dried.