Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

BASF Efka SI2028 Defoamer

BASF Efka SI2028 Defoamer is a silicone-based, high-efficiency antifoam agent designed for water-based industrial coatings and printing inks. It delivers rapid foam suppression, excellent compatibility, and minimal surface defects. Ideal for roller- and spray-applied systems, it ensures stable formulation performance without compromising gloss or substrate wetting.
  • basf efka si2028 defoamer_96e8f2c6
  • basf efka si2028 defoamer_96e8f2c6

Features Of BASF Efka SI2028 Defoamer

  1. Highly effective silicone-based defoamer for rapid foam knock-down in demanding aqueous systems.

  2. Excellent compatibility and stability in both anionic and nonionic surfactant-containing formulations.

  3. Low dosage efficiency—effective at 0.05–0.3 wt% depending on system severity.

  4. Minimal impact on gloss, transparency, and substrate wetting in final coatings and inks.

  5. Good storage stability with no phase separation under standard warehouse conditions (5–40 °C).

Typical Applications Of BASF Efka SI2028 Defoamer

  1. Architectural and industrial waterborne paints and coatings.

  2. Aqueous inkjet inks for packaging and decorative printing.

  3. Textile printing pastes and pigment dispersions.

  4. Water-based adhesives and sealants.

  5. Industrial cleaning formulations and metalworking fluids.

Specifications Of BASF Efka SI2028 Defoamer

Chemical TypeSilicone emulsion (polydimethylsiloxane-based)
Product FormOpaque white liquid emulsion
AppearanceWhite to off-white, slightly viscous liquid
pH (1% aqueous dispersion)6.0–7.5
Active Content28–32 wt%
Density (20 °C)Approx. 1.02–1.05 g/cm³
Viscosity (25 °C, Brookfield LVT, Spindle #3, 6 rpm)500–1500 mPa·s
Primary ApplicationsDefoaming in waterborne coatings, inks, textile pastes, adhesives


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