Used as a coupling agent in rubber and composite materials, enhancing adhesion between organic polymers and inorganic surfaces. Particularly effective in silica-reinforced tire tread compounds, where it improves dispersion of silica and reduces rolling resistance. Also applied in coatings and adhesives to improve wet bonding strength and moisture resistance. Its dual trialkoxysilyl groups enable strong anchoring to glass, metal, or mineral surfaces, while the thiourea moiety interacts with metal ions, making it useful in corrosion-inhibiting primers and functional coatings.