Room temperature curable organopolysiloxane compositions

A room temperature curable organopolysiloxane composition comprising

• (A) 100 parts by weight of at least one member of organopolysiloxanes having the general formulae (1) and (2):
• wherein R is methyl or ethyl, R1 is substituted or unsubstituted monovalent hydrocarbon group of 1 to 10 carbon atoms, a is an integer of at least 10, Y is an oxygen atom or an alkylene group of 1 to 5 carbon atoms, and N is independently an integer of 0 or 1,
• wherein R, R1, a, Y and N are as defined above, R2 is a hydrolyzable group-containing branched chain having the general formula:
• wherein R, R1, Y, and N are as defined above, and b is an integer of at least 1,
• (B) 0.1 to 20 parts by weight of an organoxysilane compound containing, on the average, at least two silicon-bonded hydrolyzable groups in a molecule and having a boiling point of at least 150° C. under normal pressure, a partial hydrolyzate thereof or a mixture thereof, and
• (C) 0.1 to 15 parts by weight of an organoxytitanium having the general formula (3):
• (R3O)cTi(OR4)4-c (3)
• wherein R3 is a tertiary hydrocarbon group of 4 to 10 carbon atoms in which the carbon atom bonded to the oxygen atom is tertiary, R4 is a substituted or unsubstituted monovalent hydrocarbon group of 1 to 10 carbon atoms excluding R3, and c is a positive number of 0.1 to 1.9 on the average.