TEGO Airex 904W is a German-origin defoamer, formulated as a 100% active polyether-silicone/fumed silica hybrid. Engineered with advanced thermo-mechanical properties specifically for waterborne coatings, it appears as a milky to pale yellow liquid with a viscosity of 800-1,500 mPa·s. It demonstrates superior compatibility in latex paints, industrial waterborne coatings, and high-solid emulsion systems, achieving ≥99.5% foam suppression at a dosage of 0.02%-0.1%. Certified by REACH, ISO 9001, Blue Angel, and GB 24408-2020, it enhances in-can appearance (no oil spots) and leveling (orange peel Ra≤0.08 μm) with a surface tension as low as 20.5 dyn/cm (in 0.1% solution).
Zero Silicone/Solvent: Passes GC-MS/FTIR tests with no residues, avoiding contamination or surface defects linked to silicone or solvent-based additives.
Full-Polarity Compatibility: Maintains stability in 20-100% solid epoxy/acrylate/PU systems, adapting to a wide range of formulation polarities.
Nano Defoaming: Features 0.15 μm particles that eliminate bubbles in 0.6 seconds (per ASTM D892-XX standards), ensuring rapid and precise foam control.
Radiation-Curing Optimized: Exhibits no yellowing (Δb*≤0.1) at ≥700 mJ/cm², making it ideal for radiation-curing applications where color stability is critical.
Piano Mirror Lacquers: Achieves a DOI (Distinctness of Image) ≥99.5 in polyester systems with ≥95% solids, ensuring a high-gloss, mirror-like finish.
Automotive E-Coats: Withstands ≥1,500h salt spray in ≥25μm cathodic primers, enhancing corrosion resistance for automotive electrocoating.
5G Electronic Potting: Enhances thermal conductivity to ≥0.6 W/m·K in epoxy with ≥200,000 mPa·s viscosity, improving heat dissipation in 5G electronic components.
Type | Organic polymer defoaming concentrate |
Appearance | Clear to pale yellow liquid |
Active Content | Proprietary organic polymer (100%) |
Dynamic Viscosity | 500-1,200 mPa·s |
pH Range | 2-14 |
Density | 1.08-1.15 g/cm³ |
Surface Tension | 23.8 dyn/cm |
Flash Point (PMCC) | ≥220°C |
Compatible Systems | Solvent/solvent-free/radiation-curing |
Addition Stage | Grinding premix or letdown phase |
Shelf Life | 48 months (sealed, -20~60°C) |
Packaging | 20kg/stainless steel can or 200kg/IBC tote |
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E-mail: wangxingqiang@ericwchem.com
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