German technical background VOK-P104 S Wetting dispersant Improve floating color and blossoming behavior replaces BYK-P104 S

German technical background VOK ®- Disper P104S Wetting Dispersant

VOK ®- Disper P104 S is used as a controlled flocculating wetting and dispersing agent for solvent based medium to high polarity coatings to prevent the floating color of titanium dioxide when mixed with color pigments; It contains organic silicon to improve floating color and flowering behavior.

Product Information

Chemical composition

Solution of low molecular weight unsaturated polycarboxylic acid polymer and polysiloxane copolymer.

Typical Physicochemical Data

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

Acid value: 150 mg KOH/g

Density (20 ° C): 0.95 g/ml

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

Solvent: xylene/diisobutyl ketone 9/1

Flash point: 28 ° C

Storage and transportation

During transportation and storage, delamination and turbidity may occur, which shall be heated to 30 - 60 before use ˚ C and mix thoroughly.

Special reminder

The compatibility is limited in the paint system with gasoline solvent as solvent or diluted with gasoline solvent. The auxiliary agent also contains no polysiloxane copolymer, namely VOK ®- P104。 

Application field

Coating industry

Features and Benefits

VOK ®- Disper P104S can provide a desired controlled flocculation of pigments, and build a bridge between various pigment particles to form a three-dimensional network structure. This controlled flocculation of pigment effectively prevents floating color, blooming, sedimentation and sagging. VOK ®- Disper P104S is especially suitable for medium to high polarity paint systems to prevent the floating color of titanium dioxide when mixed with color pigments. It has limited compatibility with gasoline solvents. In many cases, when used as an anti-corrosion primer, the corrosion resistance is improved. VOK ®- Disper P104 S also contains a small amount of polysiloxane copolymer to improve the floating color and blossoming behavior. This ingredient can prevent the formation of Bernard vortex, improve the smoothness and leveling of the surface, and the orientation of matting powder and aluminum powder pigments. In most cases, it is not necessary to add additional organosilicon additives that must be used in conventional formulas.

The recommended amount of additives (purchase form) is based on:

Inorganic pigment: 3-10%

Titanium dioxide: 0.5-2.5%

Organic pigment: 10-20%

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

Adding method and processing guidance

In order to obtain good performance, additives must be added to the grinding material first, and then the pigment.