| abstract |
PROBLEM TO BE SOLVED: To provide a method for producing a vulcanized molded article of fluororubber, which is preferably used as a grommet or a seal packing for a sensor, which can be used in a high-temperature environment, using a general-purpose fluororubber. SOLUTION: The fluororubber composition containing 100 parts by weight of fluororubber, 0.5 to 3 parts by weight of calcium hydroxide, 4 to 15 parts by weight of magnesium oxide, and about 10 to 50 parts by weight of thermal black and bituminous coal filler is prepared by using a polyol-based composition. After vulcanization molding in the presence of a vulcanizing agent, heat treatment is performed at a temperature of about 250 to 300 ° C. to produce a fluoro rubber vulcanization molded article. |