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).


ITM04090, ITM04091

Silicone-free surface additive for solvent-borne coatings to improve the leveling and for a moderate reduction in surface tension. Has a defoaming effect at higher doses.


Coatings Industry

The additive provides outstanding leveling properties and is suitable for all gloss levels. It has no impact on gloss and haze. It causes a slight reduction in the surface tension of the coating, thereby improving the substrate wetting properties and having a slight anti-cratering effect. BYK-399 is easily recoatable, has no foam stabilizing effect and even has defoaming properties at high doses (0.7%). The additive is silicone-free and fluorine-free.

Recommended Use

The additive is very compatible and is recommended for all solvent-borne 1K and 2K systems as well as for bakingsystems.