UV-234 is a benzotriazole ultraviolet absorber, in order to slow down the aging process of plastics, extend the service life of plastics and in the processing of a plastic additive, belongs to the stabilizing effect of the additive. It is a class of products second only to hindered amines in the amount of light stabilizers, mostly used in polyolefin, the amount of UV absorbers in polyolefin accounts for about 50% to 60%, for polypropylene outdoor products, you must add the product and antioxidant. It has almost no effect on the color of plastic products, and the light stability is better than benzophenone.