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

DOW XIAMETER APW-4311 Defoamer

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.

Product Information of DOW XIAMETER APW-4311 Defoamer

  1. Humidity Resistance: Maintains over 93% activity after 12 months in 40°C/85% RH surroundings.

  2. Quick Dispersion: Free-flowing granules (500-800 μm) mix smoothly without pre-blending.

  3. Wide Compatibility: Works in sulfate/carbonate detergents and systems with varying water hardness.

  4. Eco-Friendly: Contains no APEO and meets FDA requirements.

  5. Cost-Saving: At 0.3%-4.5% dosage, its foam control efficiency is 38% higher than mineral oil defoamers.

Areas of Application of DOW XIAMETER APW-4311 Defoamer

  1. Detergent Production: Controls foam in laundry powders (0.3-4.5% dosage).

  2. Cement Mortar: Reduces air gaps during high-solids mortar mixing (pH 8-10 systems).

  3. Powder Coatings: Removes microbubbles from resin-based mixes.

  4. Paper Manufacturing: Prolongs membrane life in deinking wastewater treatment.

Specifications Of DOW XIAMETER APW-4311 Defoamer

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


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