Polyacrylate processing aid is a polymer polymerized by one or several kinds of acrylate monomer, which can speed up the fusion of PVC resin, increase the melt strength and uniformity, abate fracture and exudation of the fondant without bad influence of the mechanical properties of PVC. So the processing aid has been widely used in the PVC products. Different kinds of Acrylate monomer and the various proportions will lead to the difference of the plasticizing, melt strength of the Acrylic processing aid. If the viscosity of the processing aid is higher, plasticizing will be lower and melt strength higher. PVC processing aid has no obvious influence on the tensile strength and Vicat softening point, while PVC processing aid with high viscosity will increase the tensile strength and Vicat softening point. Acrylic processing aid can be widely used in clear and opaque PVC profile, PVC pipe, PVC board, PVC sheet, PVC film and WPC products. Standard technical data Type Appearance Viscosity Volatile Contents Granularity YM-401 White free-flow powder 3.5-4.2 ≤1.3% ≥98% (25 meshes standard sieve) YM-128 5.0-6.0 YM-125 8.0-10.0 YM-P20 2.5-3.2 YM-175 3.0-4.0 YM-K40 5.0-6.0 YM-51 ≥10.5 YM-81 ≥10.5 YM-91 ≥10.0 Comparison sheet Type Comparison Type YM-128 PA828 of LG Chemical YM-125 K125 of Rohm&Haas YM-P20 PA-20 of Kaneka P551 of Arkema K-120n of Rohm&Haas YM-91 K435 of Rohm&Haas PA-630 of Kaneka YM-K40 K-400 of Rohm&Haas PA930 of LG Chemical YM-175 K-175 of Rohm&Haas PA-101 of Kaneka