描述
3M Fluorinert FC-77 Electronic Liquid Low Viscosity Heat Transfer Fluid
Material: PFC (Perfluorocarbon)
Boiling Point: 97°C
Viscosity (25°C): 0.8 cSt
Pour Point: -110°C
Packing: 20 kg / drum
3M Fluorinert FC-77 is a clear, colorless, fully-fluorinated electronic liquid designed for heat transfer and electronics testing applications. With a boiling point of 97°C and an exceptionally low pour point of -110°C, this high-purity perfluorocarbon (PFC) fluid offers one of the widest liquid ranges in the Fluorinert product line. Its low viscosity of 0.8 cSt provides excellent flow characteristics, while its thermal and chemical stability ensure reliable performance in demanding testing and thermal management applications.
FC-77 delivers outstanding dielectric properties — dielectric strength 40 kV, dielectric constant 1.9, and electrical resistivity 1.9×10¹⁵ ohm cm — providing reliable electrical insulation for sensitive electronic components. Nonflammable with zero ozone depletion potential, FC-77 ensures safe and environmentally responsible operation in burn-in testing, environmental stress screening, and heat transfer applications. Its compatibility with most metals, plastics, and elastomers makes it a versatile choice for electronics manufacturing and testing environments.
Genuine 3M Imported Stock and Technical Support
We supply stable spot inventory of genuine 3M Fluorinert FC-77 electronic liquid. Official TDS, SDS, and batch COA documents are available for heat transfer, electronics testing, and thermal management applications.
Request Fluorinert FC-77 Quotation, TDS, SDS, and Sample
Complete SDS, COA, and customs clearance documents available
Core Advantages of 3M Fluorinert FC-77 Electronic Liquid
- Extremely wide liquid range — boiling point 97°C to pour point -110°C for versatile applications
- Low viscosity: 0.8 cSt — excellent flow characteristics for heat transfer and testing
- Exceptional dielectric properties — dielectric strength 40 kV, dielectric constant 1.9, resistivity 1.9×10¹⁵ ohm cm
- Excellent thermal and chemical stability — stable at high temperatures, compatible with sensitive materials
- Nonflammable — no flash point, safe operation in testing and heat transfer applications
- Zero ozone depletion potential — environmentally responsible formulation
- Essentially no residue upon evaporation — clean performance for sensitive electronics testing
- Broad material compatibility — compatible with most metals, plastics, and elastomers
Main Applications
- Heat transfer — thermal management in electronics and semiconductor applications
- Electronics testing — quality and reliability testing of electronic components
- Burn-in testing — high-temperature reliability testing of electronic devices
- Environmental stress screening — temperature cycling and stress testing
- Inert reaction medium — chemical processes requiring inert environment
- Cooling applications — low-temperature to moderate-temperature cooling systems
Full Technical Parameters
| Property | Typical Value | Test Method |
| Material | Perfluorocarbon (PFC) | — |
| Appearance | Clear colorless liquid | Visual |
| Average Molecular Weight | 416 g/mol | — |
| Boiling Point | 97°C | ASTM D1078 |
| Boiling Range | 90-107°C | — |
| Pour Point | -110°C | ASTM D97 |
| Liquid Density (25°C) | 1.78 g/cm³ | ASTM D891 |
| Kinematic Viscosity (25°C) | 0.8 cSt | ASTM D445 |
| Absolute Viscosity (25°C) | 1.3 cP | — |
| Liquid Specific Heat | 1100 J kg⁻¹ °C⁻¹ | — |
| Liquid Thermal Conductivity | 0.063 W m⁻¹ °C⁻¹ | — |
| Surface Tension | 13 dynes/cm | — |
| Refractive Index | 1.28 | — |
| Dielectric Strength (0.1″ gap) | 40 kV | ASTM D877 |
| Dielectric Constant (@1 kHz) | 1.9 | ASTM D150 |
| Electrical Resistivity | 1.9×10¹⁵ ohm cm | ASTM D257 |
| Ozone Depletion Potential | 0 | — |
| Flash Point | None | — |
| Shelf Life | 24 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 | 24 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-77 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-77?
Fluorinert FC-77 has a boiling point of 97°C (90-107°C range) and an extremely low pour point of -110°C, offering an exceptionally wide liquid range for versatile heat transfer and testing applications.
What is the viscosity of Fluorinert FC-77?
Fluorinert FC-77 has a low kinematic viscosity of 0.8 cSt at 25°C and an absolute viscosity of 1.3 cP, providing excellent flow characteristics for heat transfer and electronics testing.
What is the shelf life of Fluorinert FC-77?
Fluorinert FC-77 has a shelf life of 24 months from the date of manufacture when stored in original packaging at 21°C and 50% relative humidity.
What applications is Fluorinert FC-77 suitable for?
Fluorinert FC-77 is ideal for heat transfer, electronics testing, burn-in testing, environmental stress screening, and as an inert reaction medium. Its combination of low viscosity and wide liquid range makes it versatile for multiple applications.
Is Fluorinert FC-77 flammable?
No. Fluorinert FC-77 is nonflammable with no flash point, providing safe operation in testing and heat transfer applications.
What is the dielectric strength of Fluorinert FC-77?
Fluorinert FC-77 has a dielectric strength of 40 kV (0.1 inch gap), a dielectric constant of 1.9, and electrical resistivity of 1.9×10¹⁵ ohm cm.
How does Fluorinert FC-77 compare to FC-72?
FC-77 has a higher boiling point (97°C vs 56°C) and higher viscosity (0.8 cSt vs 0.38 cSt) compared to FC-72. FC-77 offers a wider liquid range with an ultra-low pour point of -110°C, making it suitable for broader heat transfer applications, while FC-72 is specialized for low-temperature leak testing.
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-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 |
| Fluorinert FC-40 | 165°C | 2.2 cSt | -57°C | 46 kV | 650 | Wide range heat transfer |
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We supply genuine 3M Fluorinert FC-77 electronic liquid for heat transfer, burn-in testing, and electronics applications. Contact us for bulk pricing, sample availability, technical documents, and application support.
Request Fluorinert FC-77 Technical Details
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.
