Silane coupling agent Vinyltrimethoxysilane, VTMO 1. CAS NO.: 2768-02-7 2. Purity: ... and impact resistance.With the function of both coupling agent and crosslinking agent, its suitable polymers include polyethlene, polypropylene, unsaturated polyester, etc ... drumStore in a cool, dry place. Avoid light. Silane Coupling Agent - Vinyltrimethoxysilane(CAS No.: 2768-02-7)