Used as a crosslinking agent in UV-curable coatings and resins, enhancing hardness, chemical resistance, and adhesion. Commonly applied in printing inks, optical adhesives, and protective coatings due to its high thiol functionality, which enables rapid curing under UV light. Also utilized in dental composites and other light-curable materials where low shrinkage and good mechanical properties are required. Its hydrophobic nature improves moisture resistance in final products.