Used primarily as a light stabilizer in polymers, this compound protects materials from degradation caused by UV radiation and oxidative stress. It is commonly added to plastics, coatings, and adhesives to extend their service life, especially in outdoor applications. Effective in polyolefins, polyurethanes, and acrylics, it prevents yellowing, cracking, and loss of mechanical strength. Its low volatility and good compatibility with resins make it suitable for use in films, fibers, and molded parts exposed to sunlight. Also used in automotive components and agricultural films where long-term weatherability is required.