Non-silicon defoamers (Solvent type)
Non-silicon defoamer (Solvent type)
KEPERPOL®-733
Excellent comprehensive performance, it has good defoaming effect in low, medium and high polarity systems.Wide versatility.
Product overview
KEPERPOL®-733 is suitable for defoaming in all kinds coating systems , excellent defoaming performance in spray coating construction.
Physical data
1. Effective ingredient: vinyl ether polymers/acrylate polymers
2. Content: 77%
3. Solvent: xylene
Product features
1.The most excellent comprehensive performance in this series of non-silicon defoamers, it has good defoaming effect in low, medium and high polarity systems.Wide versatility.
2.Has excellent performance in the high viscosity system and thick coating system, zinc stearate coating when dipping and spraying.
3.High safety, not easy to cause shrinkage,does not affect the interlayer adhesion.
Application test
We tested and compared the comprehensive performance of KEPERPOL®-733 and AC-300 in PU /PE transparent primers.
Compare items and methods
1.Compatibility: The defoamer is added to the varnish of each system at a ratio of 0.2%, and tested the transparency of the paint.
2. Shrinkage tendency/Levelling effect: Added 1% defoamer in paint,spraying after dilution.Observe the shrinkage phenomenon of wet film and the leveling effect of dry film.
3.Defoaming ability :Add 0.2% defoaming agent to the paints, and observe the number of foam and the breaking speed after shaking five minutes.
Test result
|
Test item |
Blank |
AC-300 |
KEPERPOL®-733 |
|
Foam inhibition property |
△ |
◎ |
◎ |
|
Bubble breaking ability |
△ |
○ |
○ |
|
Dry film transparency（0.2%） |
○+ |
○ |
○ |
|
Wet film leveling（0.2%） |
○ |
△ |
△- |
|
Wet film leveling（1%） |
○+ |
△ |
△- |
|
Dry film transparency（1%） |
○+ |
○+ |
○ |
|
Shrinkage tendency（1%） |
NO |
NO |
NO |
|
Recoating ability |
◎ |
◎ |
◎ |
◎ : Excellent, ○ : good, △ : average
The test results show that KEPERPOL®-733 has good defoaming ability as AC-300, the leveling is a little bit worse,does not cause shrinkage holes, extremely safe. Please contact us for more information.
Additive amount (Supply form)
For the total amount of formula: 0.05-1%
The best dosage needs to be obtained through testing
Application field
Suitable for solvent-based coatings,inks
Shelf life and packaging
1. The shelf life is two years, starting from the date of production.When stored, the container should be sealed well, and the temperature should be between 0-40℃
2. Packaging: 25KG/180 KG ,iron bucket