NANOBYK-3605 is a nanoparticle dispersion that improves the scratch and abrasion resistance of solvent-free and solvent-borne radiation curable systems. It contains 50% surface-treated silica nanoparticles with average particle size of 20nm dispersed in hexanediol diacrylate carrier. NANOBYK-3605 provides long lasting protection against wear and tear when used between 1-10% in formulations. It enhances the durability of finished surfaces without compromising on other properties like transparency and gloss. NANOBYK-3605 is particularly effective for applications that require high resistance to abrasion and scratches from daily use.