TEGO Airex 920 is a German-origin high-performance defoamer, engineered with advanced thermo-mechanical properties to secure a competitive edge. It appears as a transparent amber liquid with a viscosity of 200-400 mPa·s, demonstrating ultra-wide compatibility in varnish systems and flow coating processes. Achieving ≥99.8% microfoam elimination at a dosage of 0.04%-0.2%, it is certified by REACH, ISO 9001, and GB 30981-2020. This defoamer enhances gloss (60°≥97 GU) and weatherability (QUV 6,000h ΔE≤0.5) with a surface tension as low as 22.5 dyn/cm (in 0.3% solution).
Universal Compatibility: Maintains stability in 15-90% solid epoxy/acrylic/polyester systems, adapting to a broad range of formulation solid contents and resin types.
Zero Silicone Risk: Passes GC-MS/FTIR tests with no siloxane-related defects, eliminating concerns of silicone contamination or surface flaws in sensitive applications.
Instant Defoaming: Features 0.2 μm organic particles that eliminate 0.8 μm bubbles in 0.7 seconds (per ASTM D892-XXII standards), ensuring rapid and efficient foam control.
Radiation-Curing Optimized: Exhibits no yellowing (ΔYI≤0.2) under UV-LED (385-405nm) or electron beam (EB, ≥300kGy) curing, making it ideal for radiation-curing systems where color stability is critical.
Automotive Clearcoats: Achieves a DOI (Distinctness of Image) ≥99 in ≥80% solid acrylic-amine spray systems, ensuring a high-gloss, mirror-like finish for automotive clear coatings.
Wood Flow Coating: Enables ≥600 grit sanding in waterborne PU coatings at line speeds ≥80 m/min, enhancing smoothness and post-processing quality in wood finishing.
Electronic Encapsulants: Eliminates voids in ≥100,000 mPa·s solvent-free epoxy (with thermal conductivity ≥0.8 W/m·K), ensuring reliable protection and heat dissipation for electronic components.
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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