Used primarily as a plasticizer in polymers to improve flexibility and workability, especially in coatings, adhesives, and sealants. It enhances low-temperature performance and increases resistance to water and UV degradation. Commonly found in PVC and other vinyl applications where durability and flexibility are required. Also serves as a reactive diluent in resin systems, reducing viscosity without compromising final product strength. Its low volatility makes it suitable for long-life applications in industrial and construction materials.