Choosing the Best Powder Defoamer for Construction Projects
Choosing the Best Powder Defoamer for Construction Projects
Powder defoamers are usually made of silicone, polyether or mineral oil based materials, processed into micron-sized particles by special techniques. Its core principle is to make the foam wall thinner and rupture by reducing the surface tension of the liquid.
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Powder defoamer has better storage stability and is easy to transport. Easier to handle in dry mix production, can be directly mixed with dry mix materials (cement, gypsum powder) uniformly, will not affect the fluidity.
Liquid defoamer is easier to be dispersed in aqueous system, it needs to be anti-freezing and anti-settling.
Different systems have different needs, and a defoamer that works well in cement-based mortars may not be suitable for gypsum-based applications. We can offer you a wide range of defoamers to ensure that the powder defoamer is suitable for the type of material.
A customer in Southeast Asia who manufactures polymer-modified putty was experiencing problems with bubbles and pits in their walls after drying. Their previous defoamer had poor dispersion and inconsistent results.
After testing our TENESSY® powder defoamer, the results were obvious:
Reduced trapped air by over 60%.
Improved surface smoothness and finish.
Lower dosage required (0.3% vs. 0.6% previously).
No effect on workability or setting time.
They not only improve product quality, but also reduce production costs.
The air content of ready-mixed concrete is too high, after adding 0.1% powder defoamer, the strength is up to standard and there is no honeycomb hole on the surface.
For more Defoamer Powderinformation, please contact us. We will provide professional answers.
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