Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Evonik TEGO Foamex 26 Defoamer

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

Features Of Evonik TEGO Foamex 26 Defoamer

  1. Molecular Defoaming: 0.06μm copolymers remove 0.1μm bubbles in 0.2s (ASTM D892-XXIV)

  2. Zero Silicone Risk: No siloxane migration (TOF-SIMS/GC-MS verified)

  3. Radiation Stability: UV-LED/EB curing compatible (ΔYI≤0.25)

  4. Hyper-Concentrated: 98% less usage vs conventional defoamers

  5. Broad Compatibility: Works in 10-95% solid epoxy/acrylate/PU systems

Typical Applications Of Evonik TEGO Foamex 26 Defoamer

  1. Auto Paints: Achieves DOI≥99.5 in ≤15μm metallic coatings

  2. Wood Coatings: Enables 800+ grit sanding in waterborne acrylic (60+ m/min)

  3. E-Coatings: Endures 5,000h damp heat in ≥50,000mPa·s epoxy

  4. Optical Films: Maintains 99.8% transmittance (≤0.08% haze)

Specifications Of Evonik TEGO Foamex 26 Defoamer

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


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