Used as a light stabilizer in polymers, especially in plastics exposed to outdoor conditions. It protects against UV degradation, helping to maintain color, strength, and flexibility over time. Commonly added to polyolefins, polypropylene, and polyethylene in applications like agricultural films, packaging, and automotive parts. Also used in coatings and adhesives where long-term weatherability is required. Effective in high-temperature processing and provides long-term thermal stability during both manufacturing and end use.