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

DOWSIL FS 80 Defoamer

DOW DOWSIL FS 80 is a 100% solids, water-dilutable silicone defoamer made for high-pressure dyeing (e.g., jet-drying machines). It uses self-emulsifying tech (3,000 mPa·s viscosity) to stay active under high temp (>100°C) and pressure, has 20.0 dyn/cm surface tension (0.5% solution), quickly eliminates micron foam (6+ hours suppression), cuts textile dyeing oil spots by 30%, and works with anionic/nonionic surfactants.

Product Information of DOWSIL FS 80 Defoamer

  1. High-Pressure Suitability: Tuned for 300-500 kPa gear (like jet dryers) with no performance drop.

  2. Auto-Emulsifying: Disperses automatically in water at 1:10 dilution—no extra equipment needed.

  3. Heat Resistance: Endures 100°C continuously and 150°C short-term, fit for thermosol dyeing.

  4. Fabric-Friendly: Lowers oil spots and back-staining, boosting fabric yield by 15%.

  5. Eco & Efficient: Zero VOC, 100% active content lets dosage drop to 0.1%-0.5%.

Areas of Application of DOWSIL FS 80 Defoamer

  1. Textile Jet Dyeing: Manages foam in dyeing machines to reduce waste (0.2%-0.8% dosage).

  2. Industrial Drying: Curbs foam in spray dryers and prevents clogging.

  3. Pulp Processing: Defoams high-temperature pulp to cut fiber loss.

  4. Chemical Reactors: Controls foam in high-pressure vessels for smooth, efficient reactions.

Specifications Of DOWSIL FS 80 Defoamer

Type
Self-emulsifying silicone defoamer
Appearance
Milky liquid
Active Content
100% polydimethylsiloxane
Dynamic Viscosity
3,000 mPa·s
Flash Point (closed cup)
>100°C
Surface Tension (0.5% solution)
20.0 dyn/cm
Specific Gravity
1.02
Recommended Dosage
0.1%-0.5% (on total system)
Packaging
18kg/drum (snap-lid) or 200kg/IBC


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