PSF‐10cSt Silicone Heat Transfer Fluid is a clear, colorless and odorless low‐viscosity linear Polydimethylsiloxane (CAS No. 63148‐62‐9) that is formulated as a cold and heat transfer medium in a wide range of applications. PSF‐10cSt Low Temperature Silicone Bath Fluid has an operating service temperature range of  –60oC to 150oC (closed system*).    PSF‐10cSt Silicone Heat Transfer Fluid is characterized by its low pour points, low temperature stability, wide service temperature range, low viscosity change at temperature (low V.T.C.), low surface tension, long service life, and hydrophobic nature (insoluble in water).    PSF‐10cSt Silicone Heat Transfer Fluid has a Thermal Conductivity value of   0.00032 g cal/cm?sec? °C.  Its specific heat value is 0.360 cal/g/°C @ 25°C.   PSF‐10cSt Silicone Heat Transfer Fluid has a low viscosity‐temperature coefficient or V.T.C. (viscosity @99°C ÷viscosity @ 38°C).    The lower the VTC, the lower the viscosity changes at temperature.    Thus, its viscosity will not significantly increase even at extremely low temperatures.  For example, at –40°C, its viscosity increases to only 75cSt.  This is critical for baths that have pumping systems that cannot operate with higher viscosity fluids.