Used as a coupling agent in composite materials to improve adhesion between organic polymers and inorganic surfaces, particularly in coatings, sealants, and adhesives. Enhances durability and moisture resistance in silicone-based formulations. Commonly employed in the production of cross-linked polyethylene (XLPE) for wire and cable insulation due to its ability to introduce reactive silane groups that enable moisture-curing. Also utilized in surface modification of fillers and pigments to achieve better dispersion in resin systems.