PDV 0541 Vinyl terminated diphenylsiloxane-dimethylsiloxane copolymer 68951-96-2 Gelest Silicone >> Vinyl functional Coatings Insoluble in water Vinyl terminated diphenylsiloxane-dimethylsiloxane copolymer. Used in coatings. Offers special thermal or optical properties. Vinyl terminated diphenylsiloxane-dimethylsiloxane copolymer. Used in coatings. Offers special thermal or optical properties.