Used as a coupling agent to improve adhesion between organic and inorganic materials, especially in coatings, sealants, and composites. Enhances the mechanical properties and durability of glass fiber-reinforced polymers by promoting strong bonding at the interface. Commonly applied in the production of adhesives and primers where moisture resistance and long-term stability are critical. Also utilized in surface modification of silica-based materials to introduce amine functional groups for further chemical reactions or to improve dispersion in polymer matrices.

Additionally, employed as a surface modifier for nanoparticles, such as silica or silicon dioxide, to enable better dispersion in organic solvents and facilitate reactions with molecules bearing functional groups, such as epoxy, isocyanate, or carboxyl.

In biomaterials applications, it reacts with the surfaces of medical devices to bind biomolecules, such as proteins or DNA, making it suitable for biosensors or bioanalytical assays.