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

Dow DC-163 Defoamer

Dow DC-163 Defoamer is a silicone-based antifoam agent from Dow’s DC series, designed for rapid foam suppression and long-lasting defoaming in water-based industrial systems including coatings, adhesives, and cleaning formulations. It offers excellent compatibility, low dosage efficiency, and stability across varied pH and temperature conditions.
  • dow dc 163 defoamer_b6ea7cdb
  • dow dc 163 defoamer_b6ea7cdb

Features Of Dow DC-163 Defoamer

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

  2. Excellent compatibility with water-based systems, including latex, emulsions, and aqueous coatings.

  3. Low dosage requirement—effective at 0.05–0.3% active on total formulation weight.

  4. Thermally stable up to 120°C, maintaining performance under elevated processing temperatures.

  5. Non-yellowing and non-staining—ideal for clear or light-colored end products.

Typical Applications Of Dow DC-163 Defoamer

  1. Architectural and industrial waterborne paints and coatings.

  2. Acrylic and styrene-butadiene (SBR) latex formulations.

  3. Aqueous adhesives and sealants.

  4. Textile printing pastes and pigment dispersions.

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

Specifications Of Dow DC-163 Defoamer

Chemical TypeSilicone oil-in-water emulsion
Product FormWhite to off-white liquid
AppearanceOpaque, pourable emulsion
pH (1% aqueous dispersion)6.0–7.5
Specific Gravity (25°C)1.00–1.04 g/cm³
Viscosity (Brookfield RV, 25°C)50–200 cP
Active Content20–22 wt%
Primary ApplicationsWater-based coatings, adhesives, latex, construction chemicals


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