Ethoxytrimethylsilane is primarily used as a coupling agent in the production of silicone resins and other silicone-based materials. It facilitates the bonding between organic and inorganic materials, enhancing the performance of coatings, adhesives, and sealants. In the construction industry, it is employed to improve the adhesion and durability of concrete sealers and waterproofing agents. Additionally, it serves as a surface modifier in the manufacturing of fillers and pigments, ensuring better dispersion and stability in various formulations. In the electronics sector, it is utilized as a precursor in the synthesis of silicon-containing compounds, which are essential for producing semiconductors and insulating materials. Its ability to act as a crosslinking agent also makes it valuable in the production of high-performance elastomers and resins.