Evonik TEGO Airex 944 Defoamer
Product Description
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
Product Data
| 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 |
Application
-Nano-Optical Coatings: ≤0.1Ω/sq sheet resistance in ≤5μm silver nanowire films
-Aerospace: Maintains solar absorptance α≤0.15 (±0.05μm accuracy)
-Flexible Electronics: Endures 200,000+ bends on PI substrates (≥99.9% transmittance)
-Marine Antifouling: Reduces friction to ≤0.03 in fluorosilicone systems
