a method of minimizing the adherence of ice on substrates which comprises coating said substrates with a polysiloxane composition which changes into a rubbery elastic material in the presence of water or atmospheric moisture which comprises α , ω - dihydroxy - polydiorganosiloxane having a viscosity of about 500 to 2 , 000 , 000 centipoise at 20 ° c . and a cross - linking agent with or without a hardening catalyst .