Ultraviolet Absorbent Light Stabuilizer UV-531 is a light stabilizer with good performance that is capable of absorbing the UV radiation of 240-340 nm wavelength. It has the characteristics of a light color, is nontoxic, has good compatibility, small mobility, easy processing etc. It can protect the polymer to its maximum extent and help to reduce the color. It can also delay yellowing. It is widely applied to PE, PVC, PP, PS, PC organic glass, polypropylene fiber, ethylene-vinyl acetate etc. Moreover, it has a very good light-stability effect on drying phenol aldehyde, varnish of alcohol and acname, polyurethane, acrylate, expoxnamee etc.