Used as a coupling agent in composite materials to improve adhesion between organic polymers and inorganic surfaces, particularly in coatings and sealants. Enhances durability and moisture resistance in silicone-based systems. Commonly applied in optical fibers, LED encapsulation, and electronic packaging due to its ability to form stable siloxane bonds on glass and metal oxides. Also utilized in the synthesis of hybrid organic-inorganic materials for advanced functional coatings.