TEGO Foamex 7447 is a German-origin defoamer, formulated as a 100% active silicone silicone-free concentrate. Engineered with advanced thermo-mechanical properties to secure a competitive edge, it appears as a clear to slightly hazy liquid with a viscosity of 150-500 mPa·s. It demonstrates universal compatibility in solvent-borne, solvent-free, and radiation-curing systems, achieving ≥99.9% microfoam elimination at a dosage of 0.02%-0.08%. Certified by REACH, ISO 9001, and GB 30981-2020, it enhances clarity (haze ≤0.3%) and leveling (orange peel Ra≤0.08 μm) in varnish systems and high-speed flow coating (≥50 m/min).
Zero Silicone Risk: Passes FTIR/GC-MS residue tests with no migration detected, eliminating concerns of silicone-related defects or contamination in sensitive applications.
Universal Compatibility: Maintains stability in 30-100% solid epoxy/acrylic/PU systems, adapting to a wide range of formulation requirements across different resin types.
Instant Defoaming: Features 0.12 μm active particles that eliminate bubbles in 1 second (per ASTM D892-XVII standards), ensuring rapid and efficient foam control.
Premium Piano Lacquers: Achieves a DOI (Distinctness of Image) ≥99 in ≥85% solid polyester-amide varnishes, ensuring a high-gloss, mirror-like finish for premium musical instrument coatings.
LED-UV Wood Coatings: Controls yellowing (Δb*≤0.2) at high flow coating speeds of 80 m/min, preserving color stability in UV-cured wood coatings.
Optical Electronic Films: Maintains ≥98.5% transmittance in acrylic UV adhesives (with a refractive index of 1.48-1.52), preserving optical clarity for electronic film applications.
Type | Silicone-free polymer defoaming concentrate |
Appearance | Clear to slightly hazy liquid |
Active Content | Proprietary polymer composite (100%) |
Dynamic Viscosity | 150-500 mPa·s |
Compatible Systems | Solvent/solvent-free/radiation-curing |
Density | 0.96-1.02 g/cm³ |
Surface Tension | 19.2 dyn/cm |
Flash Point (PMCC) | ≥80°C (solvent systems) |
Recommended Dosage | 0.02%-0.08% (by total weight) |
Shelf Life | 36 months (sealed, 5-40°C) |
Packaging | 25kg/galvanized drum or 200kg/IBC tot |
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E-mail: wangxingqiang@ericwchem.com
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