German Technical Background VOK-1780 Defoamer Suitable for Water-based Printing Ink Replaces BYK-1780

German technical background VOK®- DF 1780 Defoamer

VOK®- DF 1780 Defoamer for water-based system containing organic silicon to remove micro bubbles generated during construction of thick coating system

Product Information

Chemical composition

Polyether modified polydimethylsiloxane containing hydrophobic particles

Typical Physicochemical Data

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

Active substance: 100%

Density (20 ° C): 1.00 g/ml

Flash point: 87 ° C

Storage and transportation: closed container after use.

Coating industry

Features and Benefits

VOK®- DF 1780 has good effect on water-based systems, especially for airless spraying or air spraying thick coating systems. The additive can well remove the micro bubbles in the paint without affecting the transparency or gloss of the high gloss system. VOK ®- DF 1780 is solvent free and can be used in paint systems or varnishes.

Recommended Applications

Architectural coatings

Wood and furniture coatings

Anticorrosive coating

Industrial coatings

Recommended dosage

0.3-1% auxiliary dosage (purchase form) is based on the general formula. 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 ensure good dispersion of defoamer and prevent shrinkage cavity, high shear force must be fully guaranteed during the adding process.

Printing ink

Features and Benefits

VOK®- DF 1780 is especially suitable for water-based printing ink, varnish and water-based radiation curing printing system.

Recommended dosage

The dosage of 0.2-1.0% additives (purchased form) is based on the general formula.

The adding method and processing guidance must fully guarantee the high shearing force in the adding process.