Used as a coupling agent in composite materials to improve adhesion between organic polymers and inorganic surfaces. Enhances the mechanical and thermal stability of coatings, sealants, and adhesives. Commonly applied in the production of reinforced plastics, where it promotes better dispersion of fillers and strengthens the interface between resin and glass or mineral components. Also utilized in surface modification of silica and other metal oxides to increase hydrophobicity and compatibility with organic matrices.