Used as a surface treatment agent to impart water and oil repellency on materials such as glass, metals, and ceramics. Commonly applied in coatings and sealants to enhance durability and protect against moisture. Functions as a coupling agent in composite materials, improving adhesion between organic polymers and inorganic substrates. Also utilized in the synthesis of organosilicon compounds for specialty chemicals and in semiconductor manufacturing for depositing silicon-containing films through chemical vapor deposition processes.