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

Wacker 850E-CN Defoamer

Wacker SILICONES Wacker 850E-CN Defoamer is a highly effective silicone-based antifoam emulsion designed for demanding aqueous systems in coatings, adhesives and construction chemicals. It delivers rapid foam suppression, excellent compatibility and long-term stability without affecting gloss or substrate wetting.
  • wacker 850e cn defoamer_36299a07
  • wacker 850e cn defoamer_36299a07

Features Of Wacker 850E-CN Defoamer

  1. Highly effective silicone-based defoamer with rapid knock-down and lasting foam suppression.

  2. Excellent compatibility with water-based systems, including acrylic, styrene-acrylic, and vinyl acetate emulsions.

  3. Low dosage requirement—typically effective at 0.05–0.3 wt% on total formulation.

  4. Thermally stable up to 120 °C, maintaining performance during high-temperature polymerization and processing.

  5. Non-yellowing and non-silicone-residue-forming, ensuring clarity and stability in sensitive coatings and adhesives.

Typical Applications Of Wacker 850E-CN Defoamer

  1. Architectural and industrial waterborne paints and coatings.

  2. Acrylic and vinyl acetate-based adhesive formulations.

  3. Textile sizing and finishing agents.

  4. Construction chemicals, including cementitious tile adhesives and grouts.

  5. Water-based inks and overprint varnishes.

Specifications Of Wacker 850E-CN Defoamer

Chemical TypeSilicone-polyether copolymer dispersion
Product FormOpaque white liquid
AppearanceHomogeneous, slightly viscous dispersion
pH (1% aqueous solution)6.0–7.5
Density (20 °C)1.01–1.04 g/cm³
Viscosity (25 °C, Brookfield RV, spindle #3, 20 rpm)150–400 mPa·s
Primary ApplicationsWater-based coatings, adhesives, construction chemicals, textiles
Key FeaturesRapid foam control, low foaming tendency, shear-stable dispersion


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