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

Dow DOWSIL FS AFE Defoamer

Dow DOWSIL FS AFE Defoamer is a high-performance silicone-based antifoam agent designed for demanding industrial processes. It rapidly breaks foam and suppresses re-foaming in aqueous systems, especially under high shear, temperature, or chemical stress. Ideal for coatings, adhesives, and cleaning formulations, it offers excellent compatibility and low dosage efficiency while maintaining substrate clarity and performance integrity.
  • dow dowsil fs afe defoamer_f974a96f
  • dow dowsil fs afe defoamer_f974a96f

Features Of Dow DOWSIL FS AFE Defoamer

  1. Highly effective silicone-based defoamer for rapid foam knockdown and long-term foam suppression.

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

  3. Low dosage requirement—typically effective at 0.05–0.3 wt% active in final formulation.

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

  5. Non-yellowing and non-staining, supporting clarity and color fidelity in sensitive coatings and adhesives.

Typical Applications Of Dow DOWSIL FS AFE Defoamer

  1. Acrylic and styrene-acrylic emulsion paints and architectural coatings.

  2. Waterborne adhesives and construction sealants.

  3. Textile printing pastes and pigment dispersions.

  4. Industrial cleaning formulations and metalworking fluids.

  5. Latex-based caulks and elastomeric roof coatings.

Specifications Of Dow DOWSIL FS AFE Defoamer

Chemical TypeSilicone-polyether copolymer dispersion
Product FormOpaque white liquid
AppearanceHomogeneous milky dispersion
pH (1% aqueous dilution)6.0–7.5
Specific Gravity (25°C)1.02–1.06 g/cm³
Viscosity (25°C, Brookfield LVT, Spindle #3, 6 rpm)1,500–3,500 cP
Active Content25–28 wt%
Primary ApplicationsDefoaming in water-based emulsions and dispersions


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