HW-420 Special effect defoamer （BYK-1790）
Composition:Special polymer compound
Typical Physical Data
|
HW420 |
Appearance |
Activeportion |
Solvent |
|
Color less to light yellow liquid |
100％ |
N/A |
Application: suitable for: solvent-based coatings;
Recommended for: light-curing coatings, solvent-free coatings;
Recommended dosage: 0.02–0.8% of the total formula.
Usage: Can be added at any time.
Features and advantages:
1. HW420 has a very significant defoaming effect on the bubbles generated by the reaction of liquid polyurethane.
2. It can inhibit and eliminate the bubbles generated during the manufacture and agitation of the paint.
3. HW420 has good compatibility and can eliminate the defects such as fish eyes, pinholes and craters in the paint film,especially suitable for varnishes.
Packaging: 25kg /drum.
The product is completely unused before use, and the inner and outer covers must be tightly closed after use.
Storage: Keep away from heat, fire and light.
Note: Please carefully evaluate the effect on compatibility and shrinkage crater before use.
