How to use coating defoamers for aqueous systems?

2021-09-07   Pageview:180

Corning FoamStar SI2280 defoamer is a defoamer used in various waterborne coating systems and color pastes. It has two outstanding advantages: First, it is easy to add at low shear and does not have side effects on the final paint film.

Secondly, it is stable in high shear conditions, such as grinding, mixing and pumping processes.

 

 

 

 

 

 

 

 

 

 

 

Corning FoamStar SI2280 defoamer is specifically designed for use in.
1,  Aqueous acrylic systems
2,  Low pigment volume concentration (PVC) dispersion coatings
3,  Alkyd/polyurethane system
4, synthetic hard wax for waterbased paint

Recommended dosage

Baking paint system: 0.1%-0.5% of the total formula
Other systems: 0.5%-1.0% of the total formula
Abrasive base material: 0.5%-1.0% of the total formula

Corning FoamStar SI2280 defoamer can be added to the grinding base prior to pigment addition, or after the finished paint.

If 50% of the added amount is added to the base material before dispersion, the rest is added during the paint making stage to achieve good results.

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