DOW DOWSIL AFE-7620 is a silicone-based defoamer with advanced thermo-mechanical properties to boost your competitiveness. It is a milky homogeneous liquid (150 mPa·s viscosity) that performs stably at pH 1-14 and ≤150°C, enabling rapid bubble suppression in kraft pulping and industrial cleaning systems. Certified by ISO 9001 and REACH, it cuts foam generation by 40% at 25-50 ppm dosage while improving process efficiency.
Wide Process Tolerance: Works with pH 1-14 systems and maintains performance in 150°C environments.
Fast Defoaming Action: Nano-silicone particles (D50≤5 μm) collapse bubbles within 20 seconds.
Strong Dynamic Stability: Optimized molecular topology ensures functionality under high shear (5,000-10,000 rpm).
Eco-Friendly Compliance: Free of APEO and VOC, meeting GB 18582-2020 and OECD 301B standards.
Cost-Saving Performance: Delivers 15%-20% cost reduction per ton of treatment at 0.01%-0.1% dosage.
Pulp Cooking: Controls fiber loss in 160-170°C kraft cooking processes.
Industrial Cleaners: Compatible with pH 12 alkaline degreasers and ultrasonic systems.
Wastewater Treatment: Reduces sludge volume in high-COD effluent (≥20,000 mg/L).
Textile Dyeing: Eliminates microbubbles in jet dyeing equipment with ≥5 bar pressure.
Metalworking Fluids: Extends tool life by suppressing foam in cutting fluids.
Type | Silicone emulsion defoamer |
Appearance | Milky homogeneous liquid |
Active Content | Polydimethylsiloxane + hydrophobic silica (20%) |
Dynamic Viscosity | 150 mPa·s |
pH Range | 1-14 |
Flash Point | >100°C (closed cup) |
Surface Tension | 32.93 dyn/cm |
Thermal Stability | No stratification (150°C/24h) |
Recommended Dosage | 0.01%-0.1% (by total weight) |
Shelf Life | 1080 days (sealed, 5-35°C) |
Packaging | 200kg/drum or custom bulk bags |
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China