| abstract |
The present invention provides a fluororubber capable of peroxide crosslinking, having both extrusion moldability and low fuel permeability, a crosslinking composition containing the fluororubber, and a molded article comprising the composition. The molecular weight distribution has at least two peaks, the number average molecular weight of the lowest molecular weight peak is 3000 to 60000, the molecular weight distribution of the peak is 1.0 to 2.0, and fluorine. This is a peroxide-crosslinkable fluororubber having a Mooney viscosity of 30 to 80 at 100 ° C. of the whole rubber. [Selection figure] None |