Knowde Enhanced TDS
Identification & Functionality
- Base Oil Type
- Chemical Family
- Heat Transfer Fluid Type
- Product Type
- CAS No.
- 63148‐62‐9
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Product Highlights
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 low viscosity‐temperature coefficient or V.T.C. (viscosity at 99°C ÷ viscosity at 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.
- Features
- 100% PDMS Silicone Fluid
- Clear, Colorless, Odorless
- Low V.T.C - 0.56
- Low Vapor pressure
- Low Pour Point: ‐70°C
- Wide Service Temperature Range
- Hydrophobic: Insoluble with water
- Chemically Inert
Applications & Uses
- Markets
- Applications
Low temperature heat transfer systems, heat transfer fluid in freeze drying equipment, calibration bath fluids for low temperature, low temperature closed system baths, low temperature constant temperature baths, low temperature circulating baths, low temperature circulator baths, low temperature refrigerated baths, low temperature closed loop baths.
Properties
- Physical Form
- Appearance
- Clear, colorless, odorless fluid
- Typical Properties
- Thermal Properties
- Electrical Properties
| Value | Units | Test Method / Conditions | |
| Non‐Flammable | Yes | — | — |
| Thermally Stable | Yes | — | — |
| Specific Gravity | 0.935 | — | — |
| Refractive Index | 1.3989 | — | — |
| Pour Point | -70.0 | ºC | — |
| Flash Point (Closed Cup) | 163.0 | ºC | — |
| Boiling Point | min. 200 | ºC | — |
| Surface Tension (25°C) | 20.1 | dynes /cm | — |
| Volatile Content (150°C, open) | 0.68 | % | — |
| Viscosity‐Temp Coefficient | 0.56 | — | — |
| Viscosity (25°C) | 10.0 | cSt | — |
| Viscosity (0°C) | 17.0 | cSt | — |
| Viscosity (‐20°C) | 30.0 | cSt | — |
| Viscosity (‐40°C) | 75.0 | cSt | — |
| Value | Units | Test Method / Conditions | |
| Thermal Conductivity (50°C) | 0.00032 | g cal/cm.sec.°C | — |
| Coefficient of Thermal Expansion | 0.00108 | cc/cc °C | — |
| Specific Heat (25°C) | 0.36 | cal/g/ °C | — |
| Value | Units | Test Method / Conditions | |
| Dielectric Strength | 375.0 | volts/mil | — |
| Dielectric Constant (50Hz) | 2.68 | — | — |
| Volume Resistivity (25°C) | min. 1 | — | — |
Packaging & Availability
- Packaging
1‐gallon (3.78 liters) 3.52kg net wt. 5‐gallon pail (18.9 liters) 17.6kg net wt. 55‐gallon drum (208 liters) 190kg net wt.