Fluoroelastomer composition having excellent processability

A curable composition comprising

• A. a fluoroelastomer consisting essentially of (1) copolymerized units of 0.05-4 mole percent of a fluoroolefin of the formula Rf—(CH2CF2)n—CH═CF2, wherein Rf is a C1-C6 perfluoroalkyl group or a C1-C6 perfluoroalkoxy group and n is an integer from 1-3;
• (2) 0-1 mole percent iodine chemically bound to fluoroelastomer chain ends;
• and (3) copolymerized units selected from the group consisting of
• (i) 35-85 mole percent vinylidene fluoride, 10-60 mole percent perfluoro(vinyl ether), 0-35 mole percent tetrafluoroethylene;
• (ii) 30 to 70 mole percent tetrafluoroethylene, 5-25 mole percent vinylidene fluoride and 15-55 mole percent of a hydrocarbon olefin;
• and
• (iii) 10 to 40 mole percent of a hydrocarbon olefin, 2 to 60 mole percent tetrafluoroethylene and 20 to 45 mole percent of a perfluoro(vinyl ether);
• B. a polyhydroxy crosslinking agent;
• C. a cure accelerator;
• and
• D. a metal oxide or metal hydroxide.