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

Kemira DF-A-697 Defoamer

Kemira DF-A-697 is a silicone-free, water-dispersible defoamer from Kemira’s DF-A series, engineered for rapid foam control in demanding industrial applications like pulp & paper, wastewater treatment, and coatings. It offers excellent compatibility, low dosage efficiency, and stable performance across varying pH and temperature conditions without compromising product clarity or process integrity.
  • kemira df a 697 defoamer_25de69f3
  • kemira df a 697 defoamer_25de69f3

Features Of Kemira DF-A-697 Defoamer

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

  2. Excellent compatibility with aqueous systems, including those containing surfactants, polymers, and salts.

  3. Low dosage requirement ensures cost efficiency without compromising performance.

  4. Thermally stable across a broad processing temperature range (5–90 °C).

  5. Non-hazardous formulation compliant with major industrial safety and handling standards.

Typical Applications Of Kemira DF-A-697 Defoamer

  1. Water-based coatings and architectural paints.

  2. Industrial cleaning formulations and detergents.

  3. Paper coating and wet-end papermaking processes.

  4. Textile dyeing and finishing baths.

  5. Adhesives and sealants manufacturing.

Specifications Of Kemira DF-A-697 Defoamer

Chemical TypeSilicone emulsion
Product FormWhite to off-white liquid emulsion
AppearanceOpaque, slightly viscous liquid
pH (1% aqueous dilution)6.0–7.5
Specific Gravity (20 °C)0.98–1.02 g/cm³
Viscosity (Brookfield, 25 °C, spindle #3, 20 rpm)150–400 mPa·s
Primary ApplicationsDefoaming in water-based industrial formulations
Key FeaturesRapid foam collapse, low surface tension, shear-stable dispersion


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