Isobutyl(trimethoxy)silane is widely used as a coupling agent in the production of composite materials, particularly in the reinforcement of glass fibers with polymers. It enhances the adhesion between the fiber and the matrix, improving the mechanical properties and durability of the final product. In the construction industry, it is employed as a surface treatment for concrete and masonry to provide water repellency and protection against weathering. Additionally, it serves as a crosslinking agent in silicone resins and coatings, contributing to improved thermal stability and chemical resistance. Its application extends to adhesives and sealants, where it enhances bonding strength and flexibility.