Evonik TEGO Airex 920 is a high-performance defoamer (200-400 mPa·s) for coatings is a high-performance defoamer (200-400 mPa·s) for coatings, eliminating 99.8% microfoam at 0.04-0.2% dosage. REACH/ISO certified, it enhances gloss (60°≥97 GU) and weatherability (QUV 6,000h ΔE≤0.5) in epoxy/acrylic systems.
Broad Compatibility: Works in 15-90% solid epoxy/acrylic/polyester systems
Non-Silicone: Zero siloxane defects (GC-MS/FTIR verified)
Fast Action: Removes 0.8μm bubbles in 0.7s via 0.2μm organic particles
UV Stability: No yellowing (ΔYI≤0.2) under UV-LED/EB curing
Cost Saving: 90% less usage vs conventional defoamers
Auto Clearcoats: DOI≥99 in high-solid acrylic spray coatings
Wood Coatings: Enables 600+ grit sanding in waterborne PU (80+ m/min)
E-Encapsulants: Void-free in 100,000+ mPa·s solvent-free epoxy
Optical Films: Maintains 99.6% transmittance with ≤0.1% haze
Type | Organic polymer solution defoamer |
Appearance | Transparent amber liquid |
Active Content | Proprietary organic polymer (24%) |
Solvent | Low-aromatic solvent (aniline point ≥85°C) |
Dynamic Viscosity | 200-400 mPa·s |
pH Range | 3-12 |
Density | 0.95-1.05 g/cm³ |
Surface Tension | 22.5 dyn/cm |
Flash Point (PMCC) | ≥45°C |
Compatible Systems | Solvent/solvent-free/radiation-curing |
Addition Stage | Letdown phase or inline dosing |
Shelf Life | 24 months (sealed, 0-50°C) |
Packaging | 20kg/galvanized drum or 200kg/IBC tote |
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E-mail: wangxingqiang@ericwchem.com
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