Hong Kun Group UV 329 UV Absorber

A highly effective light stabilizer, it has a broad UV absorption spectrum and low volatility. For PS, polymethyl methacrylate, unsaturated polyester (UPE), rigid PVC, polycarbonate, ABS resin, etc., esp. in clear products or engineering plastics processed under high temperature. It has synergetic effect if used with antioxidant, which can raise heat and oxidization stabilities of the product. Usual amount to use is 0.1%-1%.Chemical Name: 2-(2'-hydroxy-5-tert-octylphenyl)-1H-benzotriazoleCAS No. 3147-75-9All information provided by Hongkun Group