Triisopropanolamine cyclic borate is primarily used as a corrosion inhibitor in various industrial applications. It is effective in protecting metal surfaces, particularly in cooling water systems and hydraulic fluids, by forming a protective layer that prevents oxidation and degradation. Additionally, it serves as a stabilizer in lubricants and fuels, enhancing their performance and longevity. In the construction industry, it is incorporated into concrete admixtures to improve durability and resistance to environmental factors. Its unique properties also make it suitable for use in coatings and paints, where it acts as a cross-linking agent to enhance adhesion and weather resistance.