DOW XIAMETER APW-4311 is a 12% active silicone powder defoamer designed for harsh industrial settings. It appears as white free-flowing granules (0.68 g/cm³ bulk density), stays effective at pH 3-12 and ≤90°C, and suppresses foam for over 24 hours in detergent powders and cement mortars. ISO 9001 and REACH certified, it lowers liquid defoamer use by 50% in high-humidity systems via improved blending.
Humidity Resistance: Maintains over 93% activity after 12 months in 40°C/85% RH surroundings.
Quick Dispersion: Free-flowing granules (500-800 μm) mix smoothly without pre-blending.
Wide Compatibility: Works in sulfate/carbonate detergents and systems with varying water hardness.
Eco-Friendly: Contains no APEO and meets FDA requirements.
Cost-Saving: At 0.3%-4.5% dosage, its foam control efficiency is 38% higher than mineral oil defoamers.
Detergent Production: Controls foam in laundry powders (0.3-4.5% dosage).
Cement Mortar: Reduces air gaps during high-solids mortar mixing (pH 8-10 systems).
Powder Coatings: Removes microbubbles from resin-based mixes.
Paper Manufacturing: Prolongs membrane life in deinking wastewater treatment.
Type | Silicone powder defoamer |
Appearance | White free-flowing granules |
Active Content | Polydimethylsiloxane + hydrophobic silica (12%) |
Bulk Density | 0.68 g/cm³ |
Particle Size (D50) | 650 μm |
pH Range | 3-12 |
Surface Tension | 32.5 dyn/cm |
Humidity Resistance | No activity loss after 12 months (40°C/85% RH) |
Shelf Life | 720 days (sealed) |
Packaging | 25kg/moisture-proof bag or 700kg/custom container |
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China