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

Evonik TEGO Airex Twin4200 Defoamer

Evonik TEGO Airex Twin4200 is a high-performance silicone-based defoamer designed for water-based industrial coatings and adhesives. It delivers rapid foam suppression and long-term antifoam stability without affecting gloss or substrate wetting. The twin-active formulation ensures excellent compatibility and low dosage efficiency. Widely used in architectural paints, wood coatings, and printing inks.
  • evonik tego airex twin4200 defoamer_1637d1e8
  • evonik tego airex twin4200 defoamer_1637d1e8

Features Of Evonik TEGO Airex Twin4200 Defoamer

  1. Highly effective silicone-free defoaming agent for demanding aqueous systems.

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

  3. Rapid foam knock-down and sustained foam suppression across broad pH and temperature ranges.

  4. Low dosage efficiency — effective at concentrations as low as 0.05–0.3 wt%.

  5. Readily dispersible in water without pre-dilution or high-shear mixing.

Typical Applications Of Evonik TEGO Airex Twin4200 Defoamer

  1. Water-based architectural coatings and decorative paints.

  2. Industrial maintenance and protective coatings (e.g., primers, topcoats).

  3. Adhesives and sealants formulations, especially acrylic and PVA-based systems.

  4. Textile printing pastes and pigment dispersions.

  5. Construction chemicals including cementitious mortars and tile adhesives.

Specifications Of Evonik TEGO Airex Twin4200 Defoamer

Chemical TypeNon-silicone, polyether-modified copolymer
Product FormLiquid concentrate
AppearanceClear to slightly opalescent, pale yellow liquid
pH (1% aqueous solution)6.0–8.0
Density (20 °C)1.02–1.06 g/cm³
Viscosity (25 °C)150–350 mPa·s
Solubility / DispersibilityReadily dispersible in water; forms stable dispersion
Primary ApplicationsDefoaming in water-based coatings, adhesives, construction chemicals, and textile auxiliaries


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