Rubber-coated gasket

Details Rubber-coated gasket Rubber-coated gasket

F - Mech Eng,Light,Heat,Weapons

16

J

277/61, 117/95

F16J 15/12 (2006.01) C09K 3/10 (2006.01)

Patent

CA 1338019

A rubber-coated gasket and method of forming the same is provided wherein a rubber layer is formed on one or both sides of the metal sheet, the rubber layer being formed of nitrile rubber containing a flaky filler and/or an alkyl titanate. The rubber layer which preferably has a thickness of 10-300 micrometers is bonded with a primer based on phenolic resin to the metal sheet. The additives and the rubber render it difficult for anti-freezes to penetrate through the rubber layer. In addition, the phenolic resin in the primer forms an antifreeze-resistant network structure which maintains the integrity of adhesion between the metal substrate and the rubber layer even if the gasket is submerged in hot anti-freeze.

585801

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