UV 400丨CAS 153519-44-9

UV 400 is a high-performance benzotriazole-based ultraviolet absorber commonly used in plastics, coatings, adhesives, and fibers to provide long-lasting protection against harmful UV radiation. It is particularly effective in engineering plastics such as polycarbonates, polyesters, and polyurethanes, where UV exposure can lead to yellowing, surface degradation, and loss of mechanical strength. In coatings and paints, UV 400 is incorporated to improve weatherability, gloss retention, and color stability, making it highly valuable in automotive, industrial, and architectural applications. It is also used in adhesives, films, and packaging materials to extend product life by preventing UV-induced deterioration. In fiber and textile processing, it helps maintain brightness and durability by reducing fading caused by sunlight exposure. Its broad-spectrum UV absorption, extending into both UV-A and UV-B ranges, makes it a preferred stabilizer in high-performance and outdoor applications.

The benefits of UV 400 lie in its excellent UV absorption efficiency, thermal stability, and compatibility with a wide range of polymers and formulations. It provides long-lasting protection against photo-degradation, ensuring that materials retain their mechanical properties, appearance, and performance over time. Compared to conventional UV stabilizers, UV 400 offers higher resistance to extraction and migration, which improves product durability in harsh outdoor environments. Its low volatility allows for use in high-temperature processing without significant loss of performance. By reducing material degradation, cracking, and discoloration, it extends the service life of products and reduces maintenance or replacement costs. Additionally, its effectiveness at low concentrations makes it cost-efficient, while supporting sustainability efforts by enhancing product longevity.