BYK Additives & Instruments is one of the world’s leading suppliers in the field of additives and measuring instruments. As a globally operating specialty chemicals company, BYK has production sites in Wesel, Kempen, Moosburg and Schkopau (Germany), Deventer and Denekamp (Netherlands), Widnes (UK), Wallingford, Chester, Gonzales, Louisville (USA) and Tongling (China).


ITM04873, ITM04874

VOC-free inorganic additive on the basis of aluminum oxide nanoparticles for aqueous architectural, industrial, wood and furniture coatings, and car polishes to improve scratch resistance.


Coatings Industry

NANOBYK-3603 significantly improves the scratch resistance of aqueous coating systems, without having a negative impact on properties such as gloss and transparency. As the aluminum oxide nanoparticles are very small, it is even suitable for highly transparent and high-gloss coatings, and can be used in clear or pigmented systems. Even low levels of NANOBYK-3603 provide long-term protection against scratching. NANOBYK-3603 can be utilized in aqueous coatings and in aqueous, radiation-curable systems, and also in acrylate dispersions, self-crosslinking acrylate dispersions, styrene acrylate dispersions, urethane acrylate dispersions, and aliphatic polyester polyurethane dispersions.

Recommended Use
  • Architectural coatings
  • Industrial coatings
  • Wood and furniture coatings



NANOBYK-3603 significantly improves the scratch resistance of aqueous car polishes.