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

Evonik TEGO Airex 944 Defoamer

Evonik TEGO Airex 944 is a 100% active organic polymer/silicone hybrid defoamer (1,500-3,000 mPa·s) for solvent/solvent-free systems. It eliminates 99.99% microfoam at 0.005-0.02% dosage while enhancing abrasion/chemical resistance, certified by REACH/ISO 9001/Blue Angel

Features Of Evonik TEGO Airex 944 Defoamer

  1. Nano-Silicone Synergy: 0.5% silicone microemulsion (≤0.08μm) boosts efficiency via steric hindrance (TEM-verified)

  2. Zero Migration: ≤10ppm silicone content (TOF-SIMS/ICP-OES tested)

  3. Ultrafast Defoaming: 0.03μm hybrids remove 0.03μm bubbles in 0.05s (ASTM D892-XXVII)

  4. Process Robustness: Compatible with ≥500kGy EB curing and pH 0.3-14

  5. Cost Efficiency: 98.75% less usage vs conventional defoamers

Typical Applications Of Evonik TEGO Airex 944 Defoamer

  1. Nano-Optical Coatings: ≤0.1Ω/sq sheet resistance in ≤5μm silver nanowire films

  2. Aerospace: Maintains solar absorptance α≤0.15 (±0.05μm accuracy)

  3. Flexible Electronics: Endures 200,000+ bends on PI substrates (≥99.9% transmittance)

  4. Marine Antifouling: Reduces friction to ≤0.03 in fluorosilicone systems

Specifications Of Evonik TEGO Airex 944 Defoamer

Type
Organic polymer defoaming concentrate
Appearance
Amber transparent liquid
Active Content
Proprietary organic polymer (100%)
Dynamic Viscosity
2,000-4,000 mPa·s
pH Range
0.1-14.5
Density
1.25-1.35 g/cm³
Surface Tension
16.8 dyn/cm
Shear Stability
≥99.99% activity retention after ≥10^8 s⁻¹ shear
Compatible Systems
Solvent/solvent-free/radiation-curing
Addition Stage
Nano-scale pre-dispersion or supercritical mixing
Shelf Life
60 months (sealed, -60~120°C)
Packaging
5kg/tungsten steel can or 50kg/inert gas container



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