Evonik TEGO Foamex 26 Defoamer
Product Description
Evonik TEGO Foamex 26 is a 100% active polyether-silicone defoamer (800-1,500 mPa·s) for solvent/solvent-free systems. It eliminates 99.95% microfoam at 0.01-0.05% dosage while maintaining optical clarity (ΔYI≤0.25), compliant with REACH/ISO 9001
Product Data
| Type | Polyether-silicone copolymer defoaming concentrate |
| Appearance | Pale yellow transparent liquid |
| Active Content | Polyether-silicone copolymer (100%) |
| Dynamic Viscosity | 800-1,500 mPa·s |
| pH Range | 1-13 |
| Density | 1.10-1.18 g/cm³ |
| Surface Tension | 18.5 dyn/cm |
| Thermal Stability | ≤0.3% viscosity change (250°C/30min) |
| Compatible Systems | Solvent/solvent-free/radiation-curing |
| Addition Stage | Pre-dispersion grinding or inline dosing |
| Shelf Life | 36 months (sealed, -20~60°C) |
| Packaging | 15kg/galvanized drum or 100kg/IBC tote |
Application
-Auto Paints: Achieves DOI≥99.5 in ≤15μm metallic coatings
-Wood Coatings: Enables 800+ grit sanding in waterborne acrylic (60+ m/min)
-E-Coatings: Endures 5,000h damp heat in ≥50,000mPa·s epoxy
-Optical Films: Maintains 99.8% transmittance (≤0.08% haze）
