Room temperature curable organopolysiloxane composition

Claim 1

A room temperature curable organopolysiloxane composition comprising: (A) 100 parts by weight of a diorganopolysiloxane having a hydroxyl group at both terminal ends of its molecular chain, or 2 or 3 C 1 -C 4 alkoxy groups at each terminal end of its molecular chain; (B) 1 to 400 parts by weight of a filler; (C) 0 to 50 parts by weight of an alkoxysilane represented by the general formula (I) (R.sup.1).sub.m Si(OR.sup.2).sub.4-m (I) where R 1 is a substituted or unsubstituted C 1 -C 20 monovalent hydrocarbon group, R 2 is a C 1 -C 4 alkyl group or a C 2 -C 4 alkoxyalkyl group, m is an integer of 0 or 1, or a partial hydrolysis product thereof; (D) 0.01 to 10 parts by weight of an organosilicon compound having at least one group represented by formula (II): [(R.sup.3).sub.2 N].sub.2 C═N-- (II) where R 3 is a hydrogen atom or a C 1 -C 6 monovalent hydrocarbon group, in its molecule; (E) 0.01 to 10 parts by weight of an organic tin compound; (F) 0.1 to 20 parts by weight of an organosilicon compound having at least one group represented by the formula (III) ##STR11## where R 4 is a substituted or unsubstituted C 1 -C 20 monovalent hydrocarbon group, or a substituted or unsubstituted phenyl group, R 5 and R 6 are each a hydrogen atom, methyl or ethyl group, and n is an integer of 0, 1 or 2.