Used as a cross-linking agent in sol-gel processes to enhance the mechanical and thermal stability of hybrid organic-inorganic materials. It is commonly applied in the synthesis of silica-based networks for coatings, membranes, and nanocomposites. Its dual triethoxysilyl groups enable strong bridging between inorganic phases, improving adhesion and durability in protective coatings and sealants. Also utilized in the development of functionalized surfaces for sensors and catalysts due to its ability to form stable, porous structures.