using a wooden stick for 3 to 5 minutes to form a composition of this invention the trapped air was removed by placing the composition mixture so formed in a vacuum desiccator at 1 mm hg pressure for 10 to 20 minutes a 6 in u00d7 6 in u00d7 0 125 in plaque was made from the depressed mixture as described in example 1 the mixture was exposed to 50 percent relative humidity at 22 u00b0 c within 2 hours the mixture became a tack free silicone elastomer after curing for 11 days at 50 percent relative humidity and 22 u00b0 c to assure that the elastomer was fully cured the physical properties of the elastomer so formed were determined according to the procedure described in example 1 the measured physical properties were the results of this comparative testing comparative examples a and b vs examples 12 and 13 demonstrate the superior cure rate of the compositions of this invention both with and without the addition of a silanol condensation catalyst the tested comparative compounds of the prior art on the other hand did not exhibit an acceptable cure rate the cure rate for both of the tested prior art.