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

DOWSIL SH 5561 Defoamer

DOWSIL SH 5561 is a siloxane emulsion-based defoamer designed for aqueous and non-aqueous industrial systems. It has a milky liquid form (500-1,200 mPa·s viscosity), stays stably active at pH 3-12 and ≤80°C, and has dynamic surface tension as low as 26 dyn/cm—quickly collapsing micron-level foam with 6+ hours of suppression. ISO 9001 certified, it cuts mineral oil defoamer usage by 15% in coatings and inks while improving production uniformity.

Product Information of DOWSIL SH 5561 Defoamer

  1. Fast Foam Breakdown: Nano siloxane particles destroy foam within 5 minutes, making it ideal for high-speed dispersion processes.

  2. Wide Compatibility: Works well with acrylic and polyurethane systems, effectively reducing coating defects.

  3. Tough Condition Resistance: Withstands pH 3-12, high salinity, and 80°C heat without any performance degradation.

  4. Eco-Friendly Compliance: APEO-free, VOC <50g/L, and meets the requirements of EU REACH and China GB/T 35602-2017.

  5. Cost-Saving Performance: 0.05%-0.5% dosage lowers costs by 18% compared to traditional defoamers.

Areas of Application of DOWSIL SH 5561 Defoamer

  1. Coatings: Controls foam in water and solvent coatings, increasing gloss by 15% when dosed at 0.1%-0.3%.

  2. Textile Dyeing: Reduces oil stains in dyeing slurries and finishing liquids, improving fabric quality.

  3. Paper Manufacturing: Suppresses foam during pulp deinking processes to enhance pulp purity.

  4. Cosmetics: Complies with ISO 22716 GMP standards, suitable for emulsion skincare product production.

Specifications Of DOWSIL SH 5561 Defoamer

Type
Siloxane emulsion defoamer
Appearance
Milky liquid
Active Content
Polydimethylsiloxane + silica
Dynamic Viscosity
500-1,200 mPa·s
pH Range
3-12
Surface Tension (0.5% solution)
26 dyn/cm
Recommended Dosage
0.05%-0.5% (on total system)
Packaging
25kg/drum or 200kg/IBC



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