Used primarily as a light stabilizer in polymers, this chemical protects materials from degradation caused by UV radiation. It is especially effective in polyolefins, polyurethanes, and polyesters, helping to prevent yellowing, cracking, and loss of mechanical strength during prolonged outdoor exposure. Common applications include automotive parts, agricultural films, coatings, and industrial textiles where long-term weatherability is critical. Its low volatility and good compatibility with various resins make it suitable for both extrusion and molding processes.