German technical background VOK-1795 Defoamer It has good defoaming properties replaces BYK-1795

German technical background VOK?- DF 1795 polymer defoamer, without organic silicon, is used for solvent based, solvent-free and radiation curing systems.

Product Information

Mixture of chemical composition foam breaking polymer, without organic silicon

Typical Physicochemical Data The data given on this data page are only typical values, not technical indicators of the product.

Density (20 ° C): 0.88 g/ml

Refractive index: 1.448

Non volatile matter (10 minutes, 150 ° C)

Application field

Coating industry

Product features and advantages VOK?- DF 1795 

It is a polymer defoamer without organic silicon, especially suitable for solvent, solvent-free and radiation curing systems. The additive shows good defoaming and pinhole prevention effects in polyurethane, polyester/melamine and epoxy coatings. Even in low dosage, VOK?- DF 1795 also has good defoaming property.

Recommended use

Coil coating

Floor coating

can lacquer 

0.1-1 % 

The amount of additives (form of supply) is based on the general formula.

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

Adding method and processing guidance

The defoamer can be added to the abrasive or added later. If added later, the shear force must be high enough to ensure good distribution of defoamer and prevent shrinkage.

Adhesives&Sealants

Product features and advantages

VOK?- DF 1795 is a polymer defoamer without organic silicon, which is used in 99.99% two-component polyurethane and epoxy systems. The additive has good defoaming effect on both big and small bubbles. Even in low dosage, VOK?- DF 1795 also has defoaming property and is especially recommended for high viscosity systems with foam stabilizing tendency.

Recommended dosage 0.1-1.5%

The amount of additives (form of supply) is based on the general formula.

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

Adding method and processing guidance

Before adding other components, add them into the resin and stir.

Thermosetting plastics

Product features and advantages VOK?- DF 1795 

Good defoaming efficiency is shown in all epoxy resin systems such as cast resin, filling or winding systems. In addition, it has good degassing performance in polyurethane systems such as transparent gel coatings.

VOK?- The use of DF 1795 shortens the exhaust time in the production process or the degassing time in the application, so as to produce higher quality products.

Recommended use

Polyurethane resin

Recommended dosage 0.1-1%

The amount of additives (form of supply) is based on the general formula.

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

Adding method and processing guidance

In order to achieve good degassing effect, VOK?- DF 1795 shall be added to polyurethane resin at the beginning of production. If added later, the shear force must be high enough to ensure a good distribution of the defoamer to prevent surface defects.