German technical background VOK-1650 Defoamer VOC free, good compatibility, easy to add replaces BYK-1650

German technical background VOK ®- DF 1650 silicone defoamer

VOC free, used in water-based paint systems, printing inks and varnish. Good compatibility, easy to add.

Product Information

Chemical composition

Lotion of foam breaking polysiloxane and hydrophobic particles

Typical Physicochemical Data

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

Density (20 ℃): 1.00 g/ml

Non volatile matter (10 min, 150 ℃): 27.5%

Carrier: water

Storage and transportation

Store and transport at 0-40 ℃. Temperature sensitive lotion. If the temperature exceeds or falls below the recommended range, the product must be tested before use, and re emulsified at room temperature if necessary.

Application field

Coating industry

Product features and advantages

VOK ®- DF 1650 is recommended for defoaming emulsion paint with pigment volume concentration between 35-70. The defoamer has good long-term effect and has no adverse effect on the acceptability of color paste.

Recommended dosage

0.1-0.5% of auxiliary dosage (supply form) is based on the general formula. 0.8% under special circumstances.

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

Adding method and processing guidance

The additive can be added at any time of production. The amount of defoamer is usually separated (2/3 of the amount is added to the abrasive, and 1/3 of the amount is added during paint mixing or after completion).

Printing ink and varnish

Product features and advantages

VOK ®- DF 1650 is recommended for defoaming of waterborne printing ink and finishing varnish of styrene acrylate and acrylate.

Recommended dosage

0.2-1% auxiliary dosage (purchase form) is based on the general formula.

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

Adding method and processing guidance

The additive can be added at any time of production. Defoamer is usually added in two parts (2/3 of the amount is added to the abrasive, and 1/3 of the amount is added to the paint mixing process or finished paint). Because of its high activity, the defoamer should be added under moderate shear force to ensure good dispersion. Otherwise, it may cause system defects.