German Technical Background VOK-8820 Defoamer Used in Water-based Coatings and Printing Inks Replaces BYK-8820

German technical background VOK®- DF 8820 Silicone Defoamer

VOC free silicone defoamer for water-based coatings, printing inks and adhesives

Product Information

Chemical composition: mixture of foam breaking polysiloxane and hydrophobic solid in polyethylene glycol

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

Density (20 ° C): 1.00 g/ml

Non volatile matter:>97%

Flash point:>100 ° C

Recommended dosage 0.05 - 0.6%

Additive dosage (purchase form) is based on the general formula

Adding method and processing guidance Due to its high activity, the additive must be added under high shear force, so that the defoamer can be well dispersed. Otherwise, the system may be defective.

Application field

Features and Benefits

Good effect in water-based finish (pigment volume solubility 18-25)

• It can be used in various resin systems, such as acrylic acid, styrene acrylic acid, polyurethane systems, etc. • It is very effective in eliminating microbubbles

• Excellent defoaming effect after storage

• No negative impact on gloss and color acceptability

• Excluding APEO and VOC push

Recommended uses: exterior wall coatings, bright to semi gloss coatings, wood and furniture coatings, adhesives, printing inks

VOK®- DF 8820 Storage and transportation Layering may occur during storage and transportation, and the mixture shall be uniform before use.