THERMASOLV CF5 is a dielectric fluid for single-phase immersion cooling in electronic and industrial applications. With low viscosity and a GWP of 2.5, it supports heat transfer and electrical insulation. An alternative to 3M Fluorinert FC-770, subject to material compatibility and operating requirements.
THERMASOLV CF5: Dielectric Fluid for Single-Phase Immersion Cooling
What is THERMASOLV CF5?
THERMASOLV CF5 is a dielectric heat transfer fluid developed by Inventec for single-phase immersion cooling in electronic and industrial applications.
It provides an alternative to 3M Fluorinert FC-770, subject to verification of material compatibility and system operating requirements.
Its combination of electrical insulation, low viscosity and heat transfer properties makes it suitable for cooling sensitive electronic components. With a GWP of 2.5 and zero ozone depletion potential, THERMASOLV CF5 is an option for applications seeking a low-GWP dielectric coolant.
Electrical Insulation and Cooling Performance
THERMASOLV CF5 provides the electrical insulation needed for direct contact with electronic components in appropriately designed immersion cooling systems.
Its low kinematic viscosity of 0.71 cSt facilitates fluid circulation and helps limit pressure losses and pumping requirements. Its wetting and thermal properties support contact with component surfaces and heat transfer to the cooling circuit.
In single-phase immersion cooling, the fluid remains liquid during operation, absorbing heat from immersed components and transferring it to a heat exchanger.
Key Technical Properties
| Property | Value |
|---|---|
| Ozone depletion potential (ODP) | 0 |
| Global warming potential (GWP, F-gas III) | 2.5 |
| Boiling point | 110 °C / 230 °F |
| Pour point | −90 °C / −130 °F |
| Kinematic viscosity | 0.71 cSt |
| Liquid density | 1,580 kg/m³ |
| Thermal conductivity | 0.077 W/(m·K) |
| Dielectric breakdown voltage | 18 kV |
| Water content | < 1 ppm |
Refer to the product technical data sheet for measurement conditions and test methods. Operating limits should be assessed for the specific cooling system.
Benefits of THERMASOLV CF5
THERMASOLV CF5 combines properties relevant to electronic and industrial thermal management:
- Electrical insulation: suitable for direct contact with sensitive electronic components, subject to system qualification.
- Low viscosity: supports circulation and helps reduce pumping requirements.
- Heat transfer performance: supports heat removal in immersion and circulating-fluid cooling systems.
- Material compatibility: suitable for use with a range of metals and polymers, subject to preliminary testing.
- Non-flammability: a useful characteristic for electronic and industrial cooling applications.
- Low GWP: a GWP of 2.5, combined with an ODP of 0.
Material compatibility must be verified using the specific components, seals and operating conditions of the intended application.
Applications
Single-Phase Immersion Cooling
THERMASOLV CF5 can be used in systems where electronic components are immersed directly in a dielectric liquid. The fluid circulates to remove heat while remaining in the liquid phase.
Cold Plates and Cooling Circuits
The fluid can also transfer heat through cold plates or cooling tubes, depending on equipment design and operating requirements.
Electrical and Thermal Testing
THERMASOLV CF5 can be used for dielectric and thermal testing of electronic devices where an electrically insulating heat transfer medium is required.
Preliminary testing is recommended to confirm material compatibility and cooling performance under actual operating conditions.
THERMASOLV CF5 as an Alternative to 3M Fluorinert FC-770
THERMASOLV CF5 is an alternative to consider when replacing 3M Fluorinert FC-770 in dielectric heat transfer applications.
Selection should be based on the system’s operating temperature, heat load, fluid circulation requirements and material compatibility. Replacement requires an application-specific assessment to determine whether any system adjustments are necessary.
Available Packaging
- 8 kg container
- 30 kg container
Other Fluids for Immersion Cooling
Explore additional products for electronic and industrial cooling:
- THERMASOLV CF3: a dielectric fluid for immersion cooling applications.
Request Technical Information or a Quotation
Contact us for the THERMASOLV CF5 technical data sheet, safety data sheet, pricing and availability, or to discuss its suitability as an alternative to 3M Fluorinert FC-770.