Triethoxy(naphthalen-1-yl)silane is primarily used as a coupling agent in the modification of surfaces and materials. It is often applied in the field of materials science to enhance the adhesion between organic polymers and inorganic substrates. This chemical is particularly valuable in the production of composite materials, where it helps to improve the compatibility and bonding strength between different phases. Additionally, it is utilized in the synthesis of hybrid organic-inorganic materials, which are essential in coatings, adhesives, and sealants. Its ability to form stable bonds with both organic and inorganic components makes it a key ingredient in the development of advanced materials with tailored properties.