Patent ID: 8337983

Claim:
A rubber laminate obtained by simultaneously cross-linking and curing a heat-curable fluororubber composition and a heat-curable silicone composition, both compositions being in contact with each other during cross-linking; the heat-curable silicone rubber composition comprising: 100 parts by mass of an alkenyl-containing diorganopolysiloxane (A) that comprises: 50 to 99 mass % of an alkenyl-containing diorganopolysiloxane (A1) that is capped at molecular terminals with alkenyl-containing organosilyl groups, is free of alkenyl groups in side molecular chains, and has a degree of polymerization in the range of 2,500 to 100,000; 1 to 50 mass % of an alkenyl-containing diorganopolysiloxane (A2) having two or more alkenyl groups in side molecular chains and having a degree of polymerization in the range of 2,500 to 100,000; 10 to 100 parts by mass of a fine silica powder (B) having specific surface area in the range of 50 m 2 /g to 400 m 2 /g; 0.1 to 10 parts by mass of an organohydrogenpolysiloxane (C) having in one molecule at least two silicon-bonded hydrogen atoms; and 0.1 to 5 part by mass of an organic peroxide (D).