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

Evonik TEGO Airex Twin 4000 Defoamer

Evonik TEGO Airex Twin 4000 Defoamer is a high-performance silicone-free, twin-phase defoaming agent designed for water-based industrial coatings and adhesives. It delivers rapid foam suppression, excellent compatibility, and long-term stability without affecting gloss or substrate wetting. Ideal for roller, spray, and curtain coating processes where persistent foam control is critical.
  • evonik tego airex twin 4000 defoamer_b420b9fd
  • evonik tego airex twin 4000 defoamer_b420b9fd

Features Of Evonik TEGO Airex Twin 4000 Defoamer

  1. Highly effective silicone-polyether hybrid defoamer with dual-phase suppression mechanism.

  2. Excellent compatibility in both water-based and solvent-containing systems without causing haze or surface defects.

  3. Low dosage efficiency — achieves robust foam control at typical use levels of 0.05–0.3 wt%.

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

  5. Non-ionic character ensures broad formulation stability across pH ranges (pH 4–12) and electrolyte concentrations.

Typical Applications Of Evonik TEGO Airex Twin 4000 Defoamer

  1. Architectural coatings (e.g., interior/exterior paints, primers, and texture finishes).

  2. Industrial maintenance coatings and protective coatings for metal and concrete substrates.

  3. Waterborne adhesives and sealants requiring low-foam mixing and application.

  4. Construction chemicals including cementitious grouts, tile adhesives, and self-leveling compounds.

  5. Automotive OEM and refinish coatings where defect-free film formation is critical.

Specifications Of Evonik TEGO Airex Twin 4000 Defoamer

Chemical TypeSilicone-polyether copolymer dispersion
Product FormOpaque white liquid
AppearanceHomogeneous, slightly viscous emulsion
Primary ApplicationsWater-based industrial and architectural coatings, construction chemicals, adhesives
Key FeaturesDual-mode defoaming, high compatibility, low-foam addition, thermal stability
BenefitsPrevents pinholes and craters, enables high-speed production, reduces rework
pH (1% aqueous dilution)6.5–7.5
Storage Stability≥12 months at 5–30 °C in unopened original container


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