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

Evonik TEGO Foamex 842 Defoamer

Evonik TEGO Foamex 842 is a silicone-free, liquid defoamer from the TEGO Foamex series, designed for water-based systems including coatings, adhesives, and cleaning formulations. It offers rapid foam suppression, excellent compatibility, and low dosage efficiency without affecting gloss or substrate wetting.
  • evonik tego foamex 842 defoamer_b8630b97
  • evonik tego foamex 842 defoamer_b8630b97

Features Of Evonik TEGO Foamex 842 Defoamer

  1. Highly effective silicone-free defoamer for demanding aqueous systems.

  2. Excellent compatibility and low tendency to cause surface defects or haze.

  3. Rapid foam breakdown with sustained antifoam performance during processing.

  4. Stable in neutral to moderately alkaline pH environments (pH 5–9).

  5. Readily dispersible in water and compatible with common surfactants and polymers.

Typical Applications Of Evonik TEGO Foamex 842 Defoamer

  1. Architectural coatings and interior wall paints.

  2. Industrial maintenance coatings and protective finishes.

  3. Adhesives and sealants formulations.

  4. Textile printing pastes and pigment dispersions.

  5. Water-based cleaning and detergent concentrates.

Specifications Of Evonik TEGO Foamex 842 Defoamer

Chemical TypePolyether-modified mineral oil blend
Product FormLiquid, ready-to-use emulsion
AppearanceOpaque white to off-white liquid
pH (1% aqueous dispersion)6.0 – 7.5
Specific Gravity (20 °C)0.98 – 1.02 g/cm³
Viscosity (25 °C, Brookfield LV, spindle #3, 60 rpm)150 – 350 mPa·s
Primary ApplicationsWater-based coatings, adhesives, textile auxiliaries
Key FeaturesSilicone-free, low-odor, non-yellowing, easy incorporation


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