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

TEGO Foamex K8 Defoamer

TEGO Foamex K8, a German hydrophobic nanocomposite, is a milky homogeneous liquid with 150-400 mPa·s viscosity. It stays stably active under pH 4-10 and ≤70°C, curbing 92% of foam at 0.1%-0.5% dosage. Certified by REACH, ISO 9001 and GB 18582-2020, it improves leveling (brush mark index ≤1 grade) and scrub resistance (≥10,000 cycles) in water-based architectural coatings and emulsion systems.

Features Of TEGO Foamex K8 Defoamer

  1. Eco-Friendly Make: Free of mineral oil and aromatics, holding French A+ indoor air certification.

  2. Hydrophobic Nano Tech: Silica with 145° contact angle clears bubbles in 8 seconds (per ASTM D892-IV).

  3. Long-Lasting Stability: No foam regrowth for 30 days under 40°C/75% RH conditions.

  4. VOC-Free Guarantee: Meets HJ 2537-2014 standards (VOC ≤2 g/L).

  5. Cost-Saving: Cuts usage by 50%, saving ¥150-200/ton.

Typical Applications Of TEGO Foamex K8 Defoamer

  1. Interior/Exterior Emulsion Paints: Reaches contrast ratio ≥0.98 in styrene-acrylic systems with ≥45% solid content.

  2. Waterborne Wood Primers: Keeps sanding marks ≤0.8 grade in EVA with ≥2,000 mPa·s viscosity.

  3. Elastic Waterproof Coatings: Limits pinholes in acrylics with ≥400% elongation and ≥720h water resistance.

  4. Cement Texture Coatings: Extends open time to 45 minutes in systems with ≤1.2mm quartz sand.

Specifications Of TEGO Foamex K8 Defoamer

Type
Modified hydrophobic nanocomposite emulsion
Appearance
Milky homogeneous liquid
Active Content
Hydrophobic silica + nano-polymer (15%)
Dynamic Viscosity
150-400 mPa·s
pH Range
4-10
Density
1.00-1.08 g/cm³
Surface Tension
24.3 dyn/cm
Electrolyte Stability
No stratification (5% NaCl/24h)
Addition Stage
Grinding or letdown phase
Shelf Life
18 months (sealed, 5-40°C)
Packaging
25kg/PE drum or 200kg/IBC tote


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