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

Dowsil DK Q1-1247 Defoamer

DOWSIL DK Q1-1247 is a 30% active nonionic siloxane defoamer emulsion for water-soluble metalworking fluids and water-based coatings/inks. As milky liquid (1,000 mPa·s viscosity), it stays active at pH 8 and ≤100°C, has 21.0 dyn/cm dynamic surface tension (0.5% solution), curbs cutting fluid foam (6+ hours suppression), boosts coating gloss uniformity, collapses bubbles in ≤5 minutes (nano silicone particles), works with anionic/nonionic surfactants, and allows 1:5 pre-dilution.

Product Information of Dowsil  DK Q1-1247 Defoamer

  1. Wide-Range Effectiveness: Acts on micron-to-millimeter bubbles, suitable for high-shear processes like metal cutting and coating dispersion.

  2. Tough Condition Resistance: Endures pH 8 alkalinity and 100°C heat without performance drop in circulating systems.

  3. Economical & Eco-Friendly: Uses 0.05%-0.3% dosage, VOC <50g/L, and meets EU REACH and China GB 24408 standards.

Areas of Application of Dowsil  DK Q1-1247 Defoamer

  1. Metalworking: Manages foam in cutting fluids/quenching oils, lowering machine corrosion (0.1%-0.5% dosage).

  2. Water-Based Coatings: Removes roller marks in epoxy/coil coatings to achieve smooth finishes.

  3. Printing Inks: Lessens streaks in flexo/gravure inks for clear, sharp patterns.

  4. Industrial Cleaning: Curbs foam in high-pressure cleaners to enable efficient rinsing.

Specifications Of Dowsil  DK Q1-1247 Defoamer

Type
Nonionic siloxane defoamer emulsion
Appearance
Milky liquid
Active Content
30% silicone
Dynamic Viscosity
1,000 mPa·s
Flash Point (closed cup)
>100°C
pH Value
8
Surface Tension (0.5% solution)
21.0 dyn/cm
Recommended Dosage
0.05%-0.3% (on total system)
Packaging
25kg/drum or 200kg/IBC


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