| abstract |
(57) [Summary] [Object] To provide a room temperature curable organopolysiloxane composition which is cured by moisture to form a silicone rubber having excellent heat resistance in a high temperature region. [Constitution] (A) Viscosity at 25 ° C. is 20 to 1,000 20,000 centipoise and at least two silicon atom-bonded hydroxyl groups or silicon atom-bonded alkoxy groups in one molecule, (B) at least a silicon atom-bonded hydrolyzable group in one molecule. An organosilicon compound having two, (C) a curing catalyst, and (D) A room temperature curable organopolysiloxane composition comprising fine powder of yellow iron oxide. |