Used as a surface treatment agent in coatings and adhesives to improve water repellency and reduce surface tension. Enhances compatibility between organic and inorganic materials in silicone-based formulations. Commonly applied in release coatings, where it provides a smooth, non-stick surface. Also functions as a coupling agent in composite materials to strengthen the interface between fillers and polymer matrices. Its hydrophobic nature makes it suitable for moisture protection in electronic encapsulants and sealants.