German Technical Background VOK-ATU Wetting Dispersant Increase Transparency and Hiding Power Replaces BYK-ATU

German technical background VOK ®- Disper ATU Wetting Dispersant

VOK ®- Disper ATU is a wetting and dispersing agent for stabilizing inorganic pigments in solvent based industrial coatings and architectural coatings

Product Information

Chemical composition

Unsaturated polyamine amide and low molecular weight acidic polyester salt solution

Typical Physicochemical Data

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

Amine value: 19 mg KOH/g

Acid value: 24 mg KOH/g

Density (20 ° C): 0.94 g/ml

Non volatile matter (10 minutes, 150 ° C): 50%

Solvent: xylene/isobutanol 8/1

Flash point: 25 ° C

Storage and transportation

Stir well before use. Delamination or turbidity may occur. Heat to 30-60 ° C and mix well.

Application information

Coating industry

Features and Benefits

The additive can deflocculate the pigment through space steric hindrance. Because the pigment particles of deflocculation are very small, high luster and color intensity can be obtained. In addition, transparency and hiding power are increased. The additive can reduce the viscosity, thereby improving the leveling property and increasing the amount of pigment added. The additive is very suitable for preparing organic bentonite slurry.

Recommended Applications

Especially recommended for architectural coatings, industrial coatings and anti-corrosion coating systems

Recommended dosage

Additive dosage (purchase form) is based on pigment:

Inorganic pigment: 1-2%

Titanium dioxide: 0.5-1%

Organic pigment: 1-5%

Bentonite: 30-50%

The above data are empirical dosage, and good dosage shall be determined through a series of tests.

Addition method and processing guidance

In order to obtain good performance, the additive should be added to the abrasive first, and then the pigment.