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

DOWSIL Q2-3315 Defoamer

DOW DOWSIL Q2-3315 is a 15% active siloxane defoamer designed for sweet gas treatment in gas scrubbing systems. It comes as a milky liquid (1600-3600 mPa·s viscosity), stays active stably at pH 6-8, quickly collapses foam (with 6+ hours suppression), and works exceptionally well in high-humidity (>90% RH) and high-flow environments. It cuts mineral oil defoamer usage by 20% while boosting gas purification efficiency.

Product Information of DOWSIL Q2-3315 Defoamer

  1. Broad Temperature Tolerance: Delivers stable performance from -50°C to 200°C, with short-term resistance up to 250°C.

  2. Strong Mechanical Performance: Boasts 8 MPa tensile strength and 300% elongation, resisting tearing and deformation effectively.

  3. Excellent Chemical Inertness: Withstands acids, alkalis, solvents, and oils, maintaining stability across pH 2-12.

  4. Superior Electrical Insulation: Features dielectric strength >15 kV/mm and volume resistivity >1×10¹⁴ Ω·cm for reliable insulation.

Areas of Application of DOWSIL Q2-3315 Defoamer

  1. Electronics: Used for PCB potting and sensor encapsulation, suitable for operating temperatures of -40°C to 150°C.

  2. Automotive: Applied in engine wire sealing and battery insulation to ensure component safety.

  3. Construction: Serves as weatherproof joint sealing for building facades, enhancing durability against the elements.

Specifications Of DOWSIL Q2-3315 Defoamer

Type
Silicone elastomer
Appearance
White/grey paste
Density (25°C)
1.12-1.25 g/cm³
Tensile Strength
≥8 MPa
Elongation at Break
≥300%
Dielectric Strength
>15 kV/mm
Volume Resistivity
>1×10¹⁴ Ω·cm
Flame Rating
UL 94 V-0
Operating Temp
-50°C to 200°C
Packaging
300ml/tube or 25kg/drum


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