Used as a coupling agent in silicone-based formulations to enhance adhesion between organic polymers and inorganic surfaces. Commonly applied in sealants, coatings, and adhesives to improve durability and moisture resistance. Also functions as a surface modifier in composite materials, promoting better dispersion and interfacial bonding. Exhibits biocidal properties, making it suitable for antimicrobial coatings in medical devices and industrial systems. Its reactive silane group enables covalent bonding to glass, metals, and minerals, while the guanidine moiety contributes to both adhesion and microbial inhibition.