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A polydimethylsiloxane liquid used from -100°C to 260 °C
SYLTHERM™ XLT is a specially engineered heat transfer fluid with incredible thermal stability across a wide temperature range of -100°C to 260°C (-150°F to 500°F).
SYLTHERM™ XLT is a silicone polymer based fluid for use as a low temperature, liquid phase heat transfer medium. SYLTHERM™ XLT offers remarkable low temperature heat transfer and pumpability and thermal conductivity.
Temperature: -100 to 500 °F (-73.3°C)
Vapor Pressure: 75.46
Specific Heat: 0.078 °F (-17.7°C)
Viscosity: 90.17
Density: 59.3
Freezing Point: -158 °F (-105.5°C)
Flash Point: 116 °F (46.6°C)
Autoignition: 662 °F (350°C)
Very low acute oral toxicity Incredibly Broad Thermal Range (-150°F to 500°F) Essentially Odor Free Excellent Thermal Stability Silicone Polymer Based Chemistry
Ineffective Heat Transfer at Low Temperatures
Frequent Process Interruption with Multiple Required Thermal Fluids
Excessive System Flush Requirements with Steam-brine or Steam-glycol systems
Used in pharmaceutical applications, Single fluid heating and cooling, Environmental test chambers
It is important for subzero systems to use a thermal fluid that can handle the conditions without sacrificing performance. Dow Chemical is the industry standard for high performance thermal fluids for incredibly low temp conditions, down to -160°F. Learn more about their portfolio of heat transfer fluids here.
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