BYK —011
Silicone-free polymerization for aqueous systems (and radiation-curable systems) Physical defoamer. Especially recommended for two-component polyurethane systems, excellent recoatability.
BYK—011 is a mixture of foam breaking polymer and hydrophobic particles, no organic Silicon
Shipping and storage
Transportation and storage temperature must be between 0℃ and 40℃, it may happen Layered or cloudy, mix well before use
Typical Value
Density (20º C) |
0.80g/ml |
NV (10 minutes, 150℃) |
29% |
solvent |
hydrocarbons Solvent/ethyl hexanol 21/1 |
Flashpoint |
72℃ |
Usage
BYK-011 is suitable for defoaming of waterborne coatings (and radiation curing systems), The additive is free of silicones and mineral oils. Especially recommended for waterborne two-component polyurethane systems and to prevent foaming during hardener addition. BYK-011 is also suitable for use in varnishes and for defoaming ultrafiltrates. Recommended dosage Waterborne two-component polyurethane system: 1-2.5% additive dosage (purchased form) based on total formulation Other water-based systems: 0.1-1.5% additive dosage (purchased form) based on total formulation
The above data is the empirical dosage, and the optimal dosage needs to be determined through a series of experiments.
Join Methods and Processing Instructions
This defoamer is easy to add and requires no grinding. Can be added to grinds or letdowns.