As a high-efficiency ultraviolet absorber, this product can effectively absorb ultraviolet light with a wavelength of 270-380 nm. It is mainly used for polyvinyl chloride, polystyrene, unsaturated resin, polycarbonate, polymethylmethacrylate, polyethylene, ABS resin, epoxy resin and cellulose resin. This product hardly absorbs visible light. It is especially suitable for colorless, transparent and colored products. The general dosage is 0.1-0.5% in thin products and 0.05-0.2% in thick products. This product is allowed to be used for plastic products in contact with food.