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Abstract

A room temperature organopolysiloxane composition is provided, which can be cured rapidly and right down to deep sections. The cured products have good rubber characteristics. The composition includes (A) 100 parts by weight of a diorganopolysiloxane represented by a general formula (1) shown below, ##STR1## wherein R represents a substituted or unsubstituted monovalent hydrocarbon group, X represents, independently, an OH group, an alkoxy group or an acyloxy group, a represents an integer from 0 to 2, and n represents a number which results in a viscosity at 25.degree. C. of 25 to 1,000,000 mm.sup.2 /s; (B) 2 to 50 parts by weight of a hydrolysable silane with at least two acyloxy groups, a partial hydrolysis-condensation product thereof, or a mixture thereof; and (C) 5 to 200 parts by weight of an inorganic filler capable of generating water through a reaction with a carboxylic acid generated by hydrolysis of the constituent (B).

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First Claim