Mvi Dx Mvi wherein Mvi and D are as defined above and x is an integer such that the viscosity of the Mvi Dx Mvi polymer in centipoise is from about 100 to about 200,000 preferably from about 1000 to about 100,000 and more preferably from about 3,000 to about 85,000; (c) from 0.1 to 50 parts per million of the total organopolysiloxane composition of a platinum catalyst; and (d) from 0.1 to 25 parts