wangxingqiang@ericwchem.com
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Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Efka Defoamer

The Efka series offers silicone-free and silicone-enhanced defoamers engineered to address foam challenges across solvent-based, waterborne, and solvent-free coatings. These additives ensure rapid bubble collapse and long-term foam suppression in high-shear processes, optimizing surface quality and production efficiency .

Compatible with epoxy, polyurethane, and alkyd systems, the defoamers enhance processing stability in industrial wood coatings, automotive finishes, and PVC compounds. Their hydrolytic resistance prevents microfoam formation during grinding, spraying, or roller application, ensuring bubble-free surfaces in architectural and marine coatings.


  • efka-defoamer.png
  • efka-defoamer.png

Features Of Efka Defoamer

  1. Rapid Foam Elimination: Effectively removes both microfoam and macrofoam across various coating systems.

  2. Persistent Performance: Maintains long-term foam suppression even in high-shear processing conditions.

  3. Broad System Compatibility: Works effectively in water-based, solvent-based, and solvent-free formulations.

  4. Regulatory Compliance: Meets environmental standards including indirect food contact requirements.

  5. Optimized Cost Efficiency: Delivers high performance at economical dosage levels for industrial-scale use.

Typical Applications Of Efka Defoamer

  1. Architectural Coatings: Water-based acrylic and alkyd systems for bubble-free finishes.

  2. Industrial Coatings: Epoxy, polyurethane, and polyester systems requiring defect-free surfaces.

  3. Wood Coatings: Nitrocellulose and acid-cured systems, particularly for curtain coating applications.

  4. Specialty Composites: PVC compounds, SMC/BMC formulations, and radiation-curing systems.

Specifications Of Efka Defoamer

ModelChemical NameAppearanceFlash PointActive Content
Efka SI2723Silicone-based defoamer solutionColorless, slightly hazy liquid77°C (171°F)/
Efka-PB 2020Silicone-free defoaming polymer Clear, slightly yellow liquid30°C (86°F)20%
EFKA-2526Emulsified metal polymer defoamerEmulsion liquid>100°C75–79%
Efka 2720Silicone-free defoaming substanceColorless, transparent to slightly hazy liquid26°C (79°F)100%
Efka 2035Organosilicon defoamerClear, colorless liquid47°C (117°F)100%
Efka PB 2010Silicone-free defoaming polymerTranslucent liquid41°C (86°F)100%
EFKA-2028Organosilicon defoamerClear, colorless liquid/100%
EFKA-2580Modified PolydimethylsiloxaneColorless liquid>100°C100%
EFKA2048Silicone-based defoamer solutionClear, colorless liquid19°C (66°F)/
Efka SI2008Silicone-based defoamerColorless, clear or slightly turbid liquid42°C69–71%


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