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‐20cSt 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, high dielectric strength, long service life, and hydrophobic nature (insoluble in water).
PSF‐20cSt Silicone Heat Transfer Fluid has a low viscosity‐temperature coefficient or V.T.C. (viscosity at 99°C ÷ viscosity at 38°C). Thus, its viscosity will not significantly increase even at extremely low temperatures. For example, at –40°C, its viscosity increases to only 125cSt. This is critical for baths that have pumping systems that cannot operate with higher viscosity fluids.
- Features
- 100% PDMS Silicone Fluid.
- Low Pour Point: ‐65°C
- Flash Point: 232°C
- Hydrophobic: Insoluble with water.
- Compatible with virtually all o‐rings, gaskets, hoses, valves and seals.
- Chemically Inert.
- Low V.T.C - Viscosity remains low even at very low temps.
- High Dielectric Strength.
Applications & Uses
- Markets
- Applications
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 | |
| Viscosity Class | Low | — | — |
| Non‐Flammable | Yes | — | — |
| Thermally Stable | Yes | — | — |
| Specific Gravity | 0.949 | — | — |
| Refractive Index | 1.4009 | — | — |
| Pour Point | -65.0 | ºC | — |
| Flash Point (Closed Cup) | 232.0 | ºC | — |
| Boiling Point | min. 200 | ºC | — |
| Surface Tension | 20.6 | — | — |
| Viscosity‐Temp Coefficient | 0.59 | — | — |
| Viscosity (25°C) | 20.0 | cSt | — |
| Viscosity (0°C) | 35.0 | cSt | — |
| Viscosity (‐20°C) | 60.0 | cSt | — |
| Viscosity (‐40°C) | 125.0 | cSt | — |
| Value | Units | Test Method / Conditions | |
| Thermal Conductivity (50°C) | 0.00034 | g cal/cm.sec.°C | — |
| Coefficient of Thermal Expansion | 0.00107 | cc/cc °C | — |
| Specific Heat (25°C) | 1.6 | J/g °C | — |
| Value | Units | Test Method / Conditions | |
| Dielectric Strength | 375.0 | volts/mil | — |
| Dielectric Constant (50Hz) | 2.72 | — | — |
| Volume Resistivity (25°C) | 1.0 x 10¹⁵ | — | — |
Packaging & Availability
- Packaging
1‐gallon (3.78 liters) 3.6kg net wt. 5‐gallon pail (18.9 liters) 18kg net wt. 55‐gallon drum (208 liters) 190kg net wt.