Polymer VS 1000 Vinyl-functional silicone Hanse Chemie Silicone (Si) >> Vinyl SEALANT ADHESIVE Unfilled polydimethylsiloxane with vinyl end groups are base polymers for the manufacture of addition curing formulation. Used in 2-part silicone rubbers. Unfilled polydimethylsiloxane with vinyl end groups. Used as base polymer for the manufacture of addition curing formulations.