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| BYK 021 |
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| Mixture of hydrophobic solids and foam destroying polysiloxanes in polyglycol |
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Silicone defoamer for aqueous coatings, especially suitable for pigmented emulsion systems based on styrene acrylate, acrylate or acrylate/polyurethane with a PVC of 18-25%.
This defoamer has demonstrated improvement of microfoam in high gloss and semi-gloss aqueous coatings, specifically airless and air-assisted applied coatings.
It is very effective during the production and application of aqueous coatings, it does not influence color acceptance and gloss.
For incorporation, sufficiently high shear forces are required to avoid cratering.
The defoamer demonstrates excellent long term stability. |
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Density at 20'C : 1.00
Non-volatile matter in% : >97
Flash point in 'C : >100 |
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