Used as a coupling agent in coatings and adhesives to improve adhesion between organic polymers and inorganic surfaces. Enhances durability and water resistance in paint formulations, especially in primers for metals and difficult-to-bond substrates. Also functions as a crosslinking promoter in silicone-based sealants, improving cure speed and performance under humid conditions. Commonly applied in industrial coatings where long-term corrosion protection is required.