German technical background VOK-FL 3440 Surface additives Can reduce surface tension replaces BYK-FL 3440

German technical background VOK®- FL 3440 surface additive

Used in solvent, solvent-free and water-based systems to reduce surface tension. Good substrate wettability. It does not affect the smoothness of the surface.

Product Information

Chemical composition: acrylate copolymer solution

Typical Physicochemical Data

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

Density (20 ℃): 0.97 g/ml

Non volatile matter (10 minutes, 150 ℃): 10%

Solvent: dipropylene glycol monomethyl ether

Flash point: 84 ℃

Storage and transportation

When the temperature is lower than 25 ℃, the product may be separated or become turbid. Heat to 30-40 ℃ and disperse evenly

Special precautions: The additive contains C fluorotelomere, which replaces VOK ®- FL 340。

application area 

Coating industry

Product features and advantages

VOK®- FL 3440 reduces the surface tension of the paint system, so it is an auxiliary for wetting the substrate to avoid shrinkage. It is especially suitable for solvent based, solvent-free and water-based paint systems. In the pure aqueous lotion system (without organic solvent), there is no fluorine substitute VOK®- FL 3455 and VOK®- FL 349 shall be used preferentially.

Recommended dosage

0.1-0.5% auxiliary dosage (supply form) is based on the general formula - up to 1% in special cases.

The above recommended dosage is for reference

Good addition amount shall be determined through a series of tests.