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

Wacker SILFOAM SE 39 Silicone Antifoam Emulsion

Wacker SILFOAM SE 39 is a high-performance silicone antifoam emulsion from Wacker’s SILFOAM series, designed for rapid foam suppression and long-lasting defoaming in aqueous systems like coatings, adhesives, and industrial cleaning. It offers excellent compatibility, low dosage efficiency, and stable emulsion properties under shear and varying pH conditions.
  • wacker silfoam se 39 silicone antifoam emulsion_e2f33bb9
  • wacker silfoam se 39 silicone antifoam emulsion_e2f33bb9

Features Of Wacker SILFOAM SE 39 Silicone Antifoam Emulsion

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

  2. Stable oil-in-water emulsion designed for easy dispersion and compatibility in aqueous systems.

  3. Low dosage requirement due to high active silicone content and optimized droplet size distribution.

  4. Excellent thermal and shear stability, maintaining performance under demanding process conditions.

  5. Non-toxic formulation compliant with FDA 21 CFR §173.340 for use in food-processing environments.

Typical Applications Of Wacker SILFOAM SE 39 Silicone Antifoam Emulsion

  1. Defoaming in industrial water treatment and wastewater bioreactors.

  2. Foam control during fermentation and downstream processing in biotechnology and pharmaceutical manufacturing.

  3. Antifoaming agent in pulp and paper mill process waters and coating formulations.

  4. Suppression of foam in textile dyeing, printing, and finishing baths.

  5. Use in cleaning-in-place (CIP) systems and detergent formulations for food and beverage production lines.

Specifications Of Wacker SILFOAM SE 39 Silicone Antifoam Emulsion

Chemical TypeDimethylpolysiloxane-based antifoam emulsion
Product FormOil-in-water (O/W) emulsion
AppearanceWhite to off-white opaque liquid
pH (1% aqueous dispersion)6.0 – 8.0
Active Content (as SiO₂ equivalent)28 – 32 % w/w
Density (20 °C)≈ 0.98 – 1.02 g/cm³
Viscosity (25 °C, Brookfield LVT, Spindle #3, 6 rpm)1,500 – 3,500 mPa·s
Storage Stability≥ 12 months at 5–30 °C in unopened original container


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