German technical background VOK-044 Defoamer For water - based printing ink and varnish replaces BYK-044

German technical background VOK®-DF 044 silicone defoamer 

For water-based printing inks and varnish.

Product information

Chemical composition

Hydrophobic particles and polysiloxane emulsions

Typical physicochemical data

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

Density (20 °C): 1.03 g/ml

Nonvolatile fraction (10 min., 150 °C): 57%

Storage and transportation

Store and transport between 0 and 40 °C. Temperature sensitive emulsion. If the storage temperature is above or below the recommended range, it must be tested before use and, if necessary, re-emulsified at room temperature.

Application field

Printing ink

VOK®-DF 044 is recommended as a defoaming agent for abrasive materials to remove foam from aqueous pigment concentrates.

Suggested usage

0.05-0.5 % additive amount (purchase form) is based on the total formula.

0.2-2% additive amount (purchased form) is based on pigment concentrated pulp.

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

Adding method and processing instruction

Due to high incompatibility, the antifoaming agent must be added at high shear forces to ensure good dispersion. Otherwise, the system may be flawed.