German technical background VOK-3820 Inorganic UV absorber Suitable for transparent wood and furniture coatings replaces BYK-3820

German technical background VOK®-3820 inorganic UV absorber for waterborne system

VOK®-3820 is a dispersion of nano-zinc oxide in water, which improves the UV resistance of waterborne coating films and binders. Compared with standard organic UV absorbents, inorganic absorbents based on zinc oxide have good stability. VOK®-3820 is particularly suitable for transparent wood and furniture coatings, as well as pigmented systems and architectural coatings.

Chemical composition: Zinc oxide nanoparticle dispersion

Solvent: Water

Dosage: 2 - 6% solid resin

Typical physical and chemical data: Non-volatile: 45%

Particle size: 20 nm