Wood Plastic Additives,SILIKE WPL 20 is a solid pellet contain UHMW Silicone copolymer dispersed in HDPE , it is particularly designed for Wood-plastic composites. A small dosage of it can significantly improve the processing properties and surface quality, including reducing the COF , lower extruder torque, higher extrusion-line speed, durable scratch & abrasion resistance and excellent surface finish with a good hand feel. Suitable for HDPE, PP, PVC .. wood plastic composites..