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.
Broad Temperature Tolerance: Delivers stable performance from -50°C to 200°C, with short-term resistance up to 250°C.
Strong Mechanical Performance: Boasts 8 MPa tensile strength and 300% elongation, resisting tearing and deformation effectively.
Excellent Chemical Inertness: Withstands acids, alkalis, solvents, and oils, maintaining stability across pH 2-12.
Superior Electrical Insulation: Features dielectric strength >15 kV/mm and volume resistivity >1×10¹⁴ Ω·cm for reliable insulation.
Electronics: Used for PCB potting and sensor encapsulation, suitable for operating temperatures of -40°C to 150°C.
Automotive: Applied in engine wire sealing and battery insulation to ensure component safety.
Construction: Serves as weatherproof joint sealing for building facades, enhancing durability against the elements.
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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E-mail: wangxingqiang@ericwchem.com
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