TEGO Foamex 805, a German polyether-silicone/nanosilica compound defoamer, is a milky homogeneous liquid with 1,200-2,000 mPa・s viscosity. It stays stably active under pH 2-12 and ≤90°C, curbing 85% of foam at 0.02%-0.08% dosage. Certified by REACH, ISO 9001 and GB 30981-2020, it enhances weather resistance (QUV 1,500h ΔE≤0.8) and adhesion (cross-cut test 0 级) in high-viscosity industrial coatings and UV inks.
Extreme Viscosity Adaptability: Maintains full dispersion in ≥150 KU systems (Hegman ≤8 μm).
Nano-Scale Defoaming: 0.7 μm hybrid particles clear bubbles in 6 seconds (per ASTM D892-VII).
High-Temperature Stability: Viscosity change ≤3% during 90°C processing.
Non-Migrating Property: Passes EN 71-3 toy safety standard for surface residue.
Cost-Saving: Reduces usage by 60%, saving ¥230-300/ton.
Wind Blade Gelcoats: Controls porosity ≤0.03% in vinyl ester infusion.
Automotive OEM Paints: Reaches DOI≥92 in ≥100 μm 3C1B processes.
Gravure Lamination Inks: Increases color density by 0.5 OD on PET at ≥600 m/min.
Self-Leveling Floors: Achieves ≤0.01 pinholes/m² with 6-minute flow time.
Type | Polyether-silicone/nanosilica composite emulsion |
Appearance | Milky homogeneous liquid |
Active Content | Modified polyether-silicone + nanosilica (30%) |
Dynamic Viscosity | 1,200-2,000 mPa·s |
pH Range | 2-12 |
Density | 1.06-1.14 g/cm³ |
Surface Tension | 21.8 dyn/cm |
Thermal Stability | No stratification (90°C/8h) |
Recommended Dosage | 0.02%-0.08% (by total weight) |
Shelf Life | 24 months (sealed, 5-40°C) |
Packaging | 25kg/galvanized drum or 200kg/IBC tote |
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E-mail: wangxingqiang@ericwchem.com
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