Triethoxy(3-thiocyanatopropyl)silane is primarily used as a coupling agent in various industrial applications. It is commonly employed to enhance the adhesion between organic polymers and inorganic materials, such as glass, metals, and ceramics. This chemical is particularly effective in improving the performance of coatings, adhesives, and sealants by promoting strong interfacial bonds.

In the field of composite materials, it is utilized to modify the surface of fillers and reinforcements, such as silica or glass fibers, to ensure better compatibility with the polymer matrix. This results in improved mechanical properties and durability of the final composite product.

Additionally, it finds application in the preparation of functionalized surfaces for sensors and biomedical devices, where its thiocyanate group can facilitate further chemical modifications or interactions with biological molecules. Its versatility makes it a valuable component in advanced material science and engineering.