Patent ID: 7381774

Claim:
A perfluoroelastomer composition comprising A) a perfluoroelastomer comprising copolymerized units of i) 40 to 55 mole percent perfluoro(alkyl vinyl ether), ii) 0.1 to 3 mole percent of a cure site monomer and the remaining copolymerized units being of iii) tetrafluoroethylene so that total mole percent is 100; and B) 25 to 50 phr of a perfluoropolyether selected from the group consisting of i) CF 3 —(O—CF 2 CF 2 ) n (OCF 2 ) m —OCF 3 ; ii) F—(CF 2 CF 2 CF 2 —O) p —CF 3 ; and iii) F—(CF(CF 3 )—CF 2 —O) q —CF 2 CF 3 wherein n, m, p and q are integers between 1 and 180.