ACCESS® SFV 80,000 is a vinyl methyl-dimethyl polysiloxane copolymer that is vinyl-terminated. With a very high viscosity of 80,000, it has pendant vinyl groups along the polymer backbone to enhance the crosslink density of the cured RTV. This polymer can be used as a base or blend polymer, and it offers reliable and consistent results when cured with silicon-hydride crosslinkers and a platinum catalyst. The resulting materials are durable, flexible, and resistant to a range of environmental factors.