Octabenzone CAS 1843-05-6 function. It is mainly used as light stabilizer for synthetic materials such as polyethylene, polypropylene, polyvinyl chloride, polyurethane rubber, etc It is widely used in PE, PVC, PP, PS, PC, polycarbonate, plexiglass, polypropylene fiber and vinyl acetate. Moreover, it provides good light stability for dry phenolic and alkyd varnishes, polyurethane, acrylic, epoxy and other air drying products, as well as automotive refinishing paint, powder coating, rubber and other products. Dosage: 0.1-0.5%.