描述
3M Fluorinert FC-770 Electronic Liquid Ultra Low Pour Point Heat Transfer
Material: PFC (Perfluorocarbon)
Boiling Point: 95°C
Viscosity (25°C): 0.79 cSt
Pour Point: -127°C
Packing: 20 kg / drum
3M Fluorinert FC-770 is a thermally stable, fully-fluorinated electronic liquid designed for demanding heat transfer applications across multiple industries. With an ultra-low pour point of -127°C and a boiling point of 95°C, this high-purity perfluorocarbon (PFC) fluid offers an exceptionally wide liquid range, making it ideal for direct contact single- and two-phase cooling in supercomputers, sensitive military electronics, high-voltage transformers, and power electronics. Its inertness, combined with high dielectric strength and electrical resistivity, ensures safe and reliable operation in critical cooling and thermal management applications.
FC-770 delivers outstanding dielectric properties — dielectric strength >40 kV, dielectric constant 1.9, and electrical resistivity >3×10¹⁴ ohm cm — making it an excellent coolant for high-voltage and power electronics. Its low viscosity of 0.79 cSt and excellent thermal stability ensure efficient heat transfer in semiconductor manufacturing equipment such as implanters, dry etchers, and CVD machines. Nonflammable with zero ozone depletion potential, FC-770 provides safe and environmentally responsible performance in ultra-low temperature thermal shock testing and heat transfer applications.
Genuine 3M Imported Stock and Technical Support
We supply stable spot inventory of genuine 3M Fluorinert FC-770 electronic liquid. Official TDS, SDS, and batch COA documents are available for supercomputing, semiconductor, power electronics, and ultra-low temperature heat transfer applications.
Request Fluorinert FC-770 Quotation, TDS, SDS, and Sample
Complete SDS, COA, and customs clearance documents available
Core Advantages of 3M Fluorinert FC-770 Electronic Liquid
- Ultra-low pour point: -127°C — one of the widest liquid ranges in the Fluorinert series for extreme low-temperature applications
- Low viscosity: 0.79 cSt — excellent flow characteristics for single- and two-phase cooling
- High dielectric strength: >40 kV — reliable electrical insulation for high-voltage and power electronics
- Excellent thermal stability — thermally and chemically stable for demanding industrial environments
- Direct contact cooling capability — inertness permits use as direct contact coolant in supercomputers and military electronics
- Nonflammable — no flash point, safe operation in sensitive electronics cooling
- Zero ozone depletion potential — environmentally responsible formulation
- Broad material compatibility — compatible with most metals, plastics, and elastomers
Main Applications
- Supercomputing — direct contact single- and two-phase cooling of high-performance computing systems
- Military electronics — cooling of sensitive defense electronics and radar systems
- Power electronics — cooling of high-voltage transformers, IGBT modules, and power conversion equipment
- Semiconductor manufacturing — cooling in ion implanters, dry etchers, and CVD machines
- Thermal shock testing — ultra-low temperature test equipment for electronics reliability
- Heat transfer fluids — general thermal management in industrial and electronics applications
Full Technical Parameters
| Property | Typical Value | Test Method |
| Material | Perfluorocarbon (PFC) | — |
| Appearance | Clear colorless liquid | Visual |
| Average Molecular Weight | 399 g/mol | — |
| Boiling Point (@1 atm) | 95°C | ASTM D1078 |
| Pour Point | -127°C | ASTM D97 |
| Liquid Density (25°C) | 1.793 g/cm³ | ASTM D891 |
| Kinematic Viscosity (25°C) | 0.79 cSt | ASTM D445 |
| Absolute Viscosity (25°C) | 1.359 cP | — |
| Liquid Specific Heat | 1038 J kg⁻¹ °C⁻¹ | — |
| Liquid Thermal Conductivity | 0.063 W m⁻¹ °C⁻¹ | — |
| Surface Tension | 14.8 dynes/cm | — |
| Refractive Index | 1.27 | — |
| Dielectric Strength (0.1″ gap) | >40 kV | ASTM D877 |
| Dielectric Constant (@1 kHz) | 1.9 | ASTM D150 |
| Electrical Resistivity | >3×10¹⁴ ohm cm | ASTM D257 |
| Ozone Depletion Potential | 0 | — |
| Flash Point | None | — |
| Shelf Life | 36 months | — |
Note: All listed figures are typical values and may vary by production batch. Complete independent qualification testing is required before mass production deployment.
Handling and Storage Recommendations
| Storage Rules | Store sealed original containers in a dry, well-ventilated area away from heat sources and direct sunlight. |
| Shelf Life | 36 months from date of manufacture when stored in original packaging at 21°C and 50% RH. |
| Forbidden Environments | Avoid exposure to open flames, strong oxidizing agents, and reactive metal powders. |
| Operation Protection | Maintain adequate ventilation. Wear nitrile protective gloves and anti-splash safety goggles during handling. |
Official Technical Documentation
| Document Type | Document Introduction | Document Request |
| TDS | 3M Fluorinert FC-770 original factory technical data sheet | Request TDS |
| SDS | Safety data sheet covering transport, storage, and handling guidelines | Request SDS |
| COA | Batch-specific certificate of analysis for incoming goods inspection | Request COA |
Frequently Asked Questions
What is the boiling point of Fluorinert FC-770?
Fluorinert FC-770 has a boiling point of 95°C at 1 atm and an extremely low pour point of -127°C, providing one of the widest liquid ranges in the Fluorinert series for ultra-low temperature heat transfer and thermal shock testing.
What is the viscosity of Fluorinert FC-770?
Fluorinert FC-770 has a low kinematic viscosity of 0.79 cSt at 25°C and an absolute viscosity of 1.359 cP, offering excellent flow characteristics for direct contact single- and two-phase cooling.
What is the shelf life of Fluorinert FC-770?
Fluorinert FC-770 has a shelf life of 36 months from the date of manufacture when stored in original packaging at 21°C and 50% relative humidity.
What applications is Fluorinert FC-770 suitable for?
Fluorinert FC-770 is ideal for direct contact single- and two-phase cooling in supercomputers, military electronics, high-voltage transformers, power electronics, semiconductor manufacturing (implanters, dry etchers, CVD machines), and thermal shock testing equipment.
Is Fluorinert FC-770 flammable?
No. Fluorinert FC-770 is nonflammable with no flash point, providing safe operation in high-performance computing and sensitive electronics cooling.
What is the dielectric strength of Fluorinert FC-770?
Fluorinert FC-770 has a dielectric strength greater than 40 kV (0.1 inch gap), a dielectric constant of 1.9, and electrical resistivity greater than 3×10¹⁴ ohm cm, making it an excellent dielectric coolant for high-voltage and power electronics.
How does Fluorinert FC-770 compare to FC-77?
FC-770 has a much lower pour point (-127°C vs -110°C) and slightly lower viscosity (0.79 cSt vs 0.8 cSt) compared to FC-77. Both have similar boiling points (95°C vs 97°C). FC-770 is specifically designed for ultra-low temperature applications including supercomputing and semiconductor cooling.
Related Fluorinert Series Fluids
Compare 3M Fluorinert electronic liquids for different heat transfer and application requirements.
| Product Grade | Boiling Point | Viscosity (25°C) | Pour Point | Dielectric Strength | Molecular Weight | Core Application |
| Fluorinert FC-770 | 95°C | 0.79 cSt | -127°C | >40 kV | 399 | Ultra-low temperature cooling, supercomputing |
| Fluorinert FC-77 | 97°C | 0.8 cSt | -110°C | 40 kV | 416 | Heat transfer, burn-in testing |
| Fluorinert FC-72 | 56°C | 0.38 cSt | -90°C | 38 kV | 338 | Leak testing |
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We supply genuine 3M Fluorinert FC-770 electronic liquid for supercomputing, semiconductor, power electronics, and ultra-low temperature heat transfer applications. Contact us for bulk pricing, sample availability, technical documents, and application support.
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Disclaimer: All technical data on this page are for general guidance only and are not product specifications. Buyers must carry out independent trials and verify suitability before bulk ordering. Actual values may vary between production lots.
