Room temperature curable organopolysiloxane compositions

A room temperature curable organopolysiloxane composition comprising

• (A) 100 parts by weight of an organopolysiloxane having at least two organooxysilyl groups in a molecule, represented by the following general formula (1) or average formula (2) or (3):
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• wherein R1 is a monovalent hydrocarbon group, R2 is a monovalent hydrocarbon group or alkoxy-substituted monovalent hydrocarbon group, R3 is a substituted or unsubstituted monovalent hydrocarbon group, Y is an oxygen atom or divalent hydrocarbon group having 1 to 8 carbon atoms, b is an integer of 1 to 3, c, d, e and m each are an integer of at least 1, k is an integer of at least 2, and c, d+m and e+k in the formulae are each such an integer that the organopolysiloxane has a viscosity of 20 to 1,000,000 centipoises at 25° C.,
• (B) 1 to 30 parts by weight of a hydroxyl-terminated linear organopolysiloxane having the following general formula (4):
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• wherein R3 is substituted or unsubstituted monovalent hydrocarbon group and f is such an integer that the organopolysiloxane has a viscosity of 20 to 1,000,000 centipoises at 25° C.,
• (C) 0.5 to 15 parts by weight of an organooxysilane having the general formula:
• R1aSi(OR2)4-a wherein R1 is a monovalent hydrocarbon group, R2 is a monovalent hydrocarbon group or alkoxy-substituted monovalent hydrocarbon group, and “a” is 0 or 1, or a partial hydrolytic condensate thereof, and
• (D) 0.1 to 10 parts by weight of a titanium chelate catalyst.