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

DOWSIL AFE-7600 Defoamer

DOW DOWSIL AFE-7600 is a concentrated silicone defoamer emulsion with advanced thermal-mechanical properties to boost your competitiveness. It is a milky homogeneous liquid (70,000 mPa·s viscosity) that performs stably at pH 1-14 and ≤150°C, achieving 40% foam reduction at 0.1%-0.5% dosage. Certified by ISO 9001 and REACH, it improves fiber retention by 15% in kraft pulping black liquor processes while optimizing cleaning efficiency.

Product Information of DOWSIL AFE-7600 Defoamer

  1. Wide Process Tolerance: Maintains stability in pH 14 environments and 150°C kraft pulping stages.

  2. Concentrated Cost-Efficiency: Contains 54-58% active content and 60-69% solids for economical dilution.

  3. Fast Defoaming Action: Nano-silicone particles collapse bubbles within 20 seconds (per ASTM D892).

  4. Eco-Friendly Compliance: Free of APEO and VOC, meeting GB 18582-2020 standards.

  5. Strong Shear Resistance: Works with ≥50 bar jet cleaning and 1,800 m/min paper machines.

Areas of Application of DOWSIL AFE-7600 Defoamer

  1. Pulp Cooking: Lowers fiber loss in pH 12-14 black liquor digestion processes.

  2. Metal Cleaning: Eliminates microbubbles in pH 12 alkaline degreasers.

  3. Liquid Detergents: 0.25% dosage ensures foam control even after 12 weeks of aging at 40°C.

  4. Effluent Treatment: Reduces sludge by 50% in high-COD wastewater.

  5. Paper Machine: Enhances sheet uniformity in 1,800 m/min forming sections.

Specifications Of DOWSIL AFE-7600 Defoamer

Type
Silicone concentrated defoamer
Appearance
Milky homogeneous liquid
Active Content
Polydimethylsiloxane + hydrophobic silica (54-58%)
Solid Content
60-69%
Dynamic Viscosity
70,000 mPa·s
pH Range
1-14
Density
1.0 g/cm³
Surface Tension
21.5 dyn/cm
Flash Point
>100°C (closed cup)
Thermal Stability
No stratification (150°C/24h)
Recommended Dosage
0.1%-0.5% (by total weight)
Shelf Life
12 months (sealed, 5-40°C)
Packaging
200kg/drum or custom bulk bags


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