NANOBYK 3603 is an aluminum oxide nanoparticle dispersion that improves scratch resistance of aqueous systems. It contains 40% aluminum oxide nanoparticles with average particle size of 25nm dispersed in water. NANOBYK 3603 significantly enhances scratch resistance without negatively impacting gloss or transparency. Even at low levels, it provides long-term protection against scratches. Being VOC-free makes NANOBYK 3603 suitable for various aqueous and radiation curable systems. Its small particle size allows usage in highly transparent and glossy finishes. NANOBYK 3603 delivers benefits like improved durability and longevity when added to coating formulations for applications that require resistance to abrasion.