| abstract |
A water-based vulcanizable fluororubber composition which contains a fluororubber, a fluororesin, and a vulcanizing agent and further contains a surfactant having a decomposition residue through 30-minute heating at 300 °C of 0.3 wt. % or lower and/or a polar solvent having a boiling point of 300 °C or lower and a surface tension at ordinary temperature of 30 dyne/cm or higher. When a coating film is formed from this water-based composition, a large proportion of the fluororesin can bleed to the film surface. Consequently, the coating film can have enhanced durability or nontackiness. |