Used as a coupling agent in silicone-based coatings and sealants to improve adhesion to inorganic surfaces like glass and metals. Enhances water repellency and durability in construction materials such as concrete and stone when applied as a surface treatment. Commonly employed in the production of water-resistant textiles and paper by forming a hydrophobic layer on fibers. Also utilized in the synthesis of organosilicon polymers for electrical insulation and moisture protection in electronic components. Its reactivity with hydroxyl groups makes it effective in modifying fillers for silicone rubber, improving dispersion and mechanical properties.