German technical background VOK-168 Wetting dispersant It can improve luster and color intensity replaces BYK-168

German technical background VOK ®- Disper 168 Wetting Dispersant

VOK ®- Disper 168 is a wetting and dispersing agent for solvent and solvent-free radiation curing coatings, printing inks and adhesives.

Product Information

Chemical composition

Modified polyurethane solution

Typical Physicochemical Data

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

Amine value: 10.5 mg KOH/g

Density (20 ° C): 1.10 g/ml

Non volatile matter (20 minutes, 150 ° C): 30%

Solvent: dicarboxylic acid ester

Flash point: 100 ° C

Storage and transportation

Mix well before use. At temperatures below 5 ° C, delamination or turbidity may occur. Heat to 20 ° C and mix thoroughly before use.

Special reminder

The surface treatment of some organic pigments will have a bad effect on the performance of the additive. In this case, the same type of untreated pigment can be used.

application area 

Coating industry

Features and Benefits

The additive makes the pigment deflocculate and stable through steric hindrance, and it also makes the pigment particles have the same charge. The resulting repulsive effect and steric stability prevent the pigment from co flocculation, thus obtaining the color without floating and blooming in the system containing multiple pigments.

The flocculating property of the additive can improve the luster, color strength, transparency and hiding power, and reduce the viscosity of the abrasive.

Recommended use

The additive is recommended for radiation curing industrial coatings, tin coatings and coil coatings.

Recommended dosage

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

Inorganic pigment: 10-15%

Titanium dioxide: 5-6%

Organic pigment: 30-90%

Carbon black: 70-140%

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.

Premix the resin and solvent components in the abrasive, and then slowly add the auxiliary agent in the state of continuous stirring. Do not add pigments when the auxiliaries have not been completely dispersed evenly.

Printing ink

Features and Benefits

The additive makes the pigment deflocculate and stable through steric hindrance, and it also makes the pigment particles have the same charge. The resulting repulsive effect and steric stability prevent the pigment from co flocculation, thus obtaining the color without floating and blooming in the system containing multiple pigments.

The flocculating property of the additive can improve the luster, color strength, transparency and hiding power, and reduce the viscosity of the abrasive.

Recommended use

The additive is especially recommended for UV curing flexographic and lithographic printing inks to improve gloss and transparency. VOK ®- Disper 168 can also shorten dispersion time, reduce viscosity, and improve color intensity.

Recommended dosage

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

Titanium dioxide: 2.5-5%

Organic pigment, carbon black: 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.

Premix the resin and solvent components in the abrasive, and then slowly add the auxiliary agent in the state of continuous stirring. Do not add pigments when the auxiliaries have not been completely dispersed evenly.

an adhesive

Features and Benefits

The additive can deflocculate and stabilize the pigment through steric hindrance, thereby reducing viscosity and improving transparency. VOK ®- Disper 168 also reduces dispersion time.

Recommended use

VOK ®- Disper 168 is recommended for stabilizing titanium dioxide, organic pigments and carbon black in radiation curing adhesive systems.

Recommended dosage

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

Titanium dioxide: 2.5-5%

Organic pigment, carbon black: 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. Premix the resin and solvent components in the abrasive, and then slowly add the auxiliary agent in the state of continuous stirring. Do not add pigments when the auxiliaries have not been completely dispersed evenly.