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|1. (WO2018105531) COATING AGENT FOR RUBBER-COATED CYLINDER HEAD GASKETS, AND CYLINDER HEAD GASKET|
|Title:||COATING AGENT FOR RUBBER-COATED CYLINDER HEAD GASKETS, AND CYLINDER HEAD GASKET|
A coating agent for rubber-coated cylinder head gaskets, which is characterized in that: a lubricant and a urethane resin are contained therein; the lubricant is composed of uncalcined polytetrafluoroethylene resin particles having an average primary particle diameter of 1 μm or less; and the content of the uncalcined polytetrafluoroethylene resin particles in the solid contents is 30-80% by volume. Consequently, the present invention is able to provide: a coating agent for rubber-coated cylinder head gaskets, which is capable of forming a coating film that has excellent wear resistance at high contact pressure under high temperature conditions, and makes the adhesion of a rubber layer to the sealing surface of a cylinder block or a cylinder head less likely after use at high contact pressure under high temperature conditions; and a cylinder head gasket which is obtained using this coating agent for rubber-coated cylinder head gaskets.