Liquid silicone rubber composition for lubricant seal

摘要

A liquid silicone rubber composition for a lubricant seal having after it is cured high resistance to lubricant, with high stability displayed even in a lubricant that has been subjected to thermal and oxidative degradation, and having its rubber elasticity well maintained. This composition for use a lubricant seal comprises the following ingredients: (A) an organopolysiloxane containing 2 or more silicon-bonded alkenyl groups in each molecule; (B) an inorganic filler; (C) an oxide or hydroxide of an alkaline-earth metal with an atomic weight of 40 or greater; (D) an organohydrogensiloxane containing 3 or more silicon-bonded hydrogen atoms in each molecule; and (E) a platinum-group catalyst.