Compositions for preparing room temperature vulcanizing type silicone rubbers

A composite article for preparing room temperature vulcanizing type silicone rubbers, said article comprising a combination of:

• A. at least one part of a putty like primary agent containing a compound selected from the group consisting of siloxanediols expressed by general formulae ##EQU20## and ##EQU21## wherein, in formula (1), R respectively represents a methyl radical, a phenyl radical or a vinyl radical, and n is an integer of from 500 to 50,000 and in formula (2), R' respectively represents a hydrogen radical and n is an integer of from 2 to 1,000 and a fine powder of a filler, the weight ratio of said compound to said filler being from 1:1 to 13:1, and
• B. at least another part of a putty like secondary agent containing a polyhydric alcohol, Ca(OH).sub.2 and a fine powder of a filler, having a weight ratio of 100 parts by weight of the polyol, 20-40 parts by weight of Ca(OH).sub.2, and 80-120 parts be weight of the fine powder filler, said primary and secondary agents shaped as independent bodies or masses, and maintained in intimate contact at the interfaces thereof.