... , PP, PS, PC, AS, ABS, PVC, SBS, polyester, polyether, polyurethane...... Aluminate coupling agentTypical Physical Properties: Color and Appearance:white to light yellow ... as a coupling agent in the basal resin, such as PE, PP, PS, PC, AS, ABS, PVC, SBS, polyester, polyether, polyurethane, polyamide ... , impact strength, elongation at break and reduce system viscosity. Aluminate coupling agent HW-988