DOW DOWSIL FS 025 is a high-performance siloxane defoamer in transparent liquid form (300-500 mPa·s viscosity). It stays active at pH 2-12 and ≤150°C, collapses micron foam fast (dynamic surface tension ≤22 dyn/cm) with 6+ hours suppression, meets FDA 21 CFR 176.210 for food-grade inks. Blended with mineral oil defoamers, it cuts usage by 20% to boost coating and food processing efficiency.
Fast Foam Collapse: Nano siloxane particles break foam in 3 minutes, suitable for high-shear coating dispersion processes.
Extreme Condition Resistance: Withstands pH 2-12, high salinity, and 150°C heat without losing performance or degrading.
Extended Shelf Life: Maintains stability for 360 days at -20°C to 50°C, staying homogeneous after dilution.
Eco-Friendly Certification: APEO-free, VOC <50g/L, and compliant with EU REACH and China GB 24408 standards.
Industrial Coatings: Removes roller marks in water/solvent coatings, increasing gloss by 15% when dosed at 0.1%-0.5%.
Food Processing: FDA-compliant for foam control in fermenters and cleaning lines, with a maximum 0.3g/kg dosage per GB 2760-2014.
Textile Dyeing: Manages foam in jet dyeing processes to lower the risk of fabric stains.
Type | Siloxane defoamer |
Appearance | Clear liquid |
Active Content | Polydimethylsiloxane (100%) |
Dynamic Viscosity | 300-500 mPa·s |
Flash Point (closed cup) | >100°C |
pH Range | 2-12 |
Surface Tension (0.5% solution) | 22 dyn/cm |
Recommended Dosage | 0.1%-1% (on total system) |
Packaging | 25kg/drum or 200kg/IBC |
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