DOWSIL ACP-3990 is a 100% silicone defoamer leveraging hydrophobic particle activation, tailored for chemical pulping foam control. It is a gray-to-milky viscous liquid (35,000 mPa·s) that works at pH 2-12 and high temps (flash point >100°C), boosting pulp washing efficiency and lowering fiber loss. It uses 30%-50% less than mineral oil defoamers and meets FDA 21 CFR 176.210 for food-grade pulp.
Super Cost-Effective Use: Delivers similar results with 1/20-1/40 the amount of traditional mineral oil defoamers, slashing costs by 40%.
Tough Environment Resistance: Withstands high temp (>100°C) and shear, suitable for 80-100°C kraft pulping.
Quick Emulsification: Pre-emulsified liquid allows direct dosing, creating stable emulsion in 5 minutes.
Eco-Friendly Compliance: Free of APEO, VOC<50g/L, and certified by EU REACH and China GB 24408.
Extended Shelf Life: Maintains stability for 720 days without stratification at 4-50°C.
Chemical Pulping: Curbs black liquor foam, reducing fiber loss (0.05%-0.2% dosage).
Paper Bleaching: Manages foam in H₂O₂ bleaching to ensure uniform whiteness.
Food Processing Wastewater: Controls foam in fermenters/wash lines, complying with indirect food contact standards.
Industrial Wastewater: Lessens foam in high-COD aeration tanks, decreasing sludge carryover.
Type | Silicone defoamer |
Appearance | Gray to milky viscous liquid |
Active Content | 100% silicone |
Dynamic Viscosity | 35,000 mPa·s |
Flash Point (closed cup) | >100°C |
Specific Gravity | 1.02 |
pH Range | 2-12 |
Recommended Dosage | 0.05%-0.3% (on total system) |
Packaging | 25kg/drum or 200kg/IBC |
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China