German Technical Background VOK-FL 3652 Dispersions Improving Scratch Resistance of Solvent Based Varnish Replaces BYK-FL 3652

German technical background VOK®- FL 3652 dispersion

The surface treated silica nano particle dispersion can improve the scratch resistance of solvent based varnish, and can be used in automobile paint, industrial paint, wood and furniture paint.

Product Information

Chemical composition: surface treated silica nanoparticle dispersion

Typical Physicochemical Data

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

Density (20 ℃): 1.14 g/ml

Non volatile matter (20 min., 150 ℃): 31%

Carrier: propylene glycol methyl ether acetate/propylene glycol methyl ether

Flash point: 48 ℃

Nanoparticle content: 25%

D50 particle size: 20 nm

Viscosity (20 ℃): 10 mPa · s

Storage and transportation

Storage and transportation temperature must be lower than 40 ℃

Special reminder

Once drying, solid particles may precipitate on the barrel wall. If this happens, please be sure to remove them before use to prevent them from entering the finished product and causing anti coarsening. The propylene glycol methyl ether contained in this auxiliary has no effect on 2K polyurethane system.

application area 

Coating industry

Features and Benefits

This additive can provide the so-called "immediate recovery effect", which is due to the impact absorption effect of nano silica uniformly distributed in the coating. It can absorb impact energy and release it slowly. This can bring some elasticity to the coating surface, but does not affect the hardness. There is almost no trace of mechanical impact on the coating surface, maintaining the scratch resistance of the paint film surface, and providing a long-term protection.