Used as a coupling agent in composite materials to improve adhesion between organic polymers and inorganic surfaces. Enhances durability and mechanical strength in coatings, adhesives, and sealants. Commonly applied in automotive, aerospace, and construction industries where strong interfacial bonding is critical. Also utilized in rubber-to-metal bonding and as a surface modifier for glass fibers and minerals. Provides improved moisture resistance and thermal stability in resin systems.