| abstract |
(A) Hydroxyl group-blocked diorganopolysiloxane at both terminals, a hydroxyl group-containing hydrocarbon compound in an amount of 0.01 to 0.5 moles based on 1 mole of hydroxyl groups bonded to silicon atoms in the diorganopolysiloxane, and 0.01 to 1% by mass of the entire component (A) 100 parts by mass of a reaction product with chloroplatinic acid hexahydrate in an amount of Decomposition-condensation product: 1-20 mass parts, (D) Condensation curing catalyst: 0.01-5 mass parts, (E) Silane coupling agent (however, (C) component and (D) component are excluded): 0.1-5 mass It is a room temperature curable organopolysiloxane composition containing a part, and it produces the hardened|cured material with little contamination with respect to natural stone, painted aluminum, etc. which maintains the rubber elasticity of a low elastic modulus over a long period of time. |