German technical background VOK-342 Surface additives It has good substrate wetting and anti-cratering properties replaces BYK-342

German technical background VOK ®- 342 Organic silicon surface additive

It is used as an organic silicon surface assistant for solvent, solvent-free and water-based systems to reduce surface tension. It has good wetting and anti shrinkage properties of the substrate, and can also improve the surface smoothness of the coating.

Product Information

chemical composition 

Polyether modified polydimethylsiloxane solution

Typical Physicochemical Data

The data given in this data page are only typical values, not technical indicators of the product.

Density (20 ° C): 0.99 g/ml

Non volatile matter (10 minutes, 150 ° C): 52%

Solvent: dipropylene glycol monomethyl ether

Flash point: 76 ° C

Special reminder

The auxiliary agent is VOK ®- 341 and VOK®- 344 fluoride free alternatives.

application area 

Paint Chemistry

Features and Benefits

The additive can effectively reduce the surface tension of the coating, so it can improve the wettability of the substrate and anti shrinkage. At the same time, it can also improve the surface smoothness, luster and adhesion resistance of the coating.

Recommended use

The additive is applicable to all solvent based, solvent-free and water-based coatings.

Recommended dosage

0.1-0.3% auxiliary dosage (supply form) is based on the general formula.

The above recommended dosage is for reference, and good dosage shall be determined through a series of tests