Benzotriazole UV absorbers can effectively absorb ultraviolet light in both the UVA and UVB ranges, with absorption extending up to 400 nm, though absorption beyond 400 nm is minimal. In standard UV aging tests, benzotriazole products consistently demonstrate excellent performance. In addition, benzotriazole UV absorbers are often combined with various hindered amine light stabilizers (HALS) to achieve a synergistic effect, thereby extending the durability and anti-aging performance of materials.
Benzotriazole UV absorbers exhibit strong compatibility with a wide range of materials. They are commonly used in industrial plastics such as PE, PP, PVC, and PC, where they enhance weather resistance and durability. Representative products in this category include UV-P, UV-234, and UV-360. In coatings applications-including automotive coatings, marine paints, and wood finishes-benzotriazole absorbers are widely applied to prevent issues such as chalking and cracking. Key products used in coatings include UV-900, UV-928, and UV-1130.
Another advantage of benzotriazole UV absorbers is their low tendency to cause discoloration, ensuring that the original color and appearance of the end product are preserved.
