San Processing Aid is an ultra-high molecular weight polymer copolymerized by styrene and acrylonitrile. It is a thermoplastic processing aid with excellent heat resistance, good stability and chemical corrosion resistance. It can promote the plasticization of PVC, significantly improve the thermal deformation temperature and surface roughness of PVC products, and give PVC products higher surface hardness and rigidity. San processing aids can be processed by common thermoplastic molding methods, such as injection molding, extrusion, injection blow molding and compression molding
