GP- 501 Vinyl/methoxy end-blocked silicone polymer Genesee Polymers Silicone Coatings >> UV / Radiation Curing VINYL-TERMINATED SILICONE FLUID GP-501 is a vinyl end-blocked silicone polymer. The vinyl functionality of GP-501 provides a reactive site for cross-linking by ultraviolet or heat accelerated free radical cross-linking reactions. GP-501 is compatible with dimethyl silicone fluids, and with aliphatic and aromatic hydrocarbon solvents. Heat or Radiation Cure Coatings Vinyl end-blocked silicone polymer. Used in heat and radiation cure coatings. Provides a reactive site for cross-linking by ultraviolet or heat accelerated free radical reactions. Offers compatibility with dimethyl silicone fluids.