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

TEGO Foamex 860 Defoamer

TEGO Foamex 860 is a German-origin defoamer, formulated as a polyether-modified silicone nanocomposite. Engineered with advanced thermo-mechanical properties to secure a competitive edge, it appears as a slightly hazy liquid with a viscosity of 80-250 mPa·s. It maintains stable activity under pH 3-12 and temperatures ≤95°C, achieving 96% foam suppression at a dosage of 0.05%-0.2%. Certified by REACH, ISO 9001, and GB 30981-2020, it enhances leveling (Ra≤0.12 μm) and drying efficiency in water-based industrial coatings and gravure ink systems.

Features Of TEGO Foamex 860 Defoamer

  1. Universal Compatibility: Stable in waterborne acrylics (Tg 20-80°C), PU dispersions (≤100 nm), and epoxy emulsions, adapting to a wide range of water-based formulations.

  2. Nano Response: Features 0.35 μm modified silicone particles that eliminate bubbles in 5 seconds (per ASTM D892-VII standards), ensuring efficient foam control.

  3. Long-Term Stability: Prevents foam regeneration for 28 days at 50°C/80% relative humidity, maintaining consistent performance over extended periods.

  4. Zero VOC Certification: Compliant with HJ 2537-2014 (VOC ≤1 g/L), meeting strict environmental and regulatory standards for low volatile organic compound emissions.

Typical Applications Of TEGO Foamex 860 Defoamer

  1. Heavy-Duty Waterborne Paints: Achieves a DOI (Distinctness of Image) ≥94 in spray systems with ≥50% solids, enhancing the finish quality of durable waterborne paints.

  2. Flexo Packaging Inks: Controls color density variation (ΔE≤0.2) on NY/CPP (nylon/cast polypropylene) substrates at speeds ≥600 m/min, ensuring consistent print quality in high-speed flexography.

  3. Paper Cup Coatings: Limits oxygen transmission to ≤5 cc/m²/day in PE emulsions with ≥8 MFI (Melt Flow Index), preserving the barrier properties of paper cup coatings.

Specifications Of TEGO Foamex 860 Defoamer

Type
Polyether-modified silicone composite emulsion
Appearance
Slightly hazy homogeneous liquid
Active Content
Polyether-silicone + nano-enhancer (18%)
Dynamic Viscosity
80-250 mPa·s
pH Range
3-12
Density
1.02-1.10 g/cm³
Surface Tension
23.5 dyn/cm
Electrolyte Stability
No stratification (10% CaCl₂/48h)
Addition Stage
Pre-dispersion or letdown phase
Shelf Life
24 months (sealed, 5-40°C)
Packaging
25kg/PE drum or 200kg/IBC tote


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