Patent ID: 8173251

Claim:
A gasket material comprising: a metal plate; and a fluorine rubber layer having a Vickers hardness of 15 to 30 N/mm 2 , being provided on one side or both sides of the metal plate, and being obtained from a fluorine rubber composition containing a fluorine rubber polymer having a Mooney viscosity (100° C.) of 50 to 120; wherein the fluorine rubber composition further contains: a polyol compound as a crosslinking agent in an amount of 3 to 6 parts by weight; and 30 to 70 parts by weight of carbon black having an average particle diameter of 25 to 80 nm, 3 to 10 parts by weight of magnesium oxide, 10 to 30 parts by weight of calcium hydroxide, 20 to 50 parts by weight of calcium carbonate, and 2 to 5 parts by weight of an amine-based silane coupling agent all based on 100 parts by weight of the fluorine rubber polymer.