描述
3M Fluorinert FC-70 Electronic Liquid High Boiling Vapor Phase Fluid
Material: PFC (Perfluorocarbon)
Boiling Point: 215°C
Viscosity (25°C): 12 cSt
Pour Point: -25°C
Packing: 20 kg / drum
3M Fluorinert FC-70 is a clear, colorless, fully-fluorinated electronic liquid designed for vapor phase soldering and high-temperature thermal management. With the highest boiling point of 215°C among Fluorinert electronic liquids, this high-purity perfluorocarbon (PFC) fluid is ideal for condensation reflow soldering processes. The dense saturated vapor generated from boiling FC-70 is easily contained, and the oxygen-free environment allows for use of mild flux compounds, simplifying the cleaning of finished circuit boards.
FC-70 offers outstanding thermal and chemical stability, compatibility with sensitive materials, and leaves essentially no residue upon evaporation. Its excellent dielectric properties — dielectric strength 40 kV, dielectric constant 1.98, and electrical resistivity 2.3×10¹⁵ ohm cm — provide reliable electrical insulation for sensitive electronic components. Nonflammable with zero ozone depletion potential, FC-70 ensures safe and environmentally responsible operation in high-temperature vapor phase soldering and heat transfer applications.
Genuine 3M Imported Stock and Technical Support
We supply stable spot inventory of genuine 3M Fluorinert FC-70 electronic liquid. Official TDS, SDS, and batch COA documents are available for vapor phase soldering, heat transfer, and high-temperature electronics applications.
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Complete SDS, COA, and customs clearance documents available
Core Advantages of 3M Fluorinert FC-70 Electronic Liquid
- Highest boiling point: 215°C — ideal for vapor phase soldering and condensation reflow soldering processes
- Dense saturated vapor — easily contained for efficient vapor phase processing
- Oxygen-free soldering environment — allows use of mild flux compounds, simplifies circuit board cleaning
- Excellent dielectric properties — dielectric strength 40 kV, dielectric constant 1.98, resistivity 2.3×10¹⁵ ohm cm
- Exceptional thermal and chemical stability — stable at high temperatures, compatible with sensitive materials
- Nonflammable — no flash point, safe operation in high-temperature soldering and thermal management
- Zero ozone depletion potential — environmentally responsible formulation
- Essentially no residue upon evaporation — clean performance for electronics manufacturing
Main Applications
- Vapor phase soldering — condensation reflow soldering of electronic assemblies
- Condensation reflow soldering — high-temperature soldering processes with dense vapor containment
- High-temperature heat transfer — thermal management in electronics and semiconductor applications
- Electronics testing — reliability testing and quality assurance
- Inert reaction media — chemical processes requiring high-temperature thermal control
- Thermal management — cooling of high-power electronics and components
Full Technical Parameters
| Property | Typical Value | Test Method |
| Material | Perfluorocarbon (PFC) | — |
| Appearance | Clear colorless liquid | Visual |
| Average Molecular Weight | 820 g/mol | — |
| Boiling Point (@1 atm) | 215°C | ASTM D1078 |
| Pour Point | -25°C | ASTM D97 |
| Liquid Density (25°C) | 1.94 g/cm³ | ASTM D891 |
| Kinematic Viscosity (25°C) | 12 cSt | ASTM D445 |
| Absolute Viscosity (25°C) | 24 cP | — |
| Liquid Specific Heat | 1100 J kg⁻¹ °C⁻¹ | — |
| Liquid Thermal Conductivity | 0.070 W m⁻¹ °C⁻¹ | — |
| Surface Tension | 18 dynes/cm | — |
| Refractive Index | 1.30 | — |
| Dielectric Strength (0.1″ gap) | 40 kV | ASTM D877 |
| Dielectric Constant (@1 kHz) | 1.98 | ASTM D150 |
| Electrical Resistivity | 2.3×10¹⁵ 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-70 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-70?
Fluorinert FC-70 has a boiling point of 215°C at 1 atm, the highest among Fluorinert electronic liquids, making it ideal for vapor phase soldering and high-temperature thermal management.
What is the viscosity of Fluorinert FC-70?
Fluorinert FC-70 has a kinematic viscosity of 12 cSt at 25°C and an absolute viscosity of 24 cP, providing good flow characteristics for high-temperature heat transfer and soldering applications.
What is the shelf life of Fluorinert FC-70?
Fluorinert FC-70 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-70 suitable for?
Fluorinert FC-70 is ideal for vapor phase soldering, condensation reflow soldering, heat transfer, electronics testing, and inert reaction media. Its dense saturated vapor allows for use of mild flux compounds and simplifies circuit board cleaning.
Is Fluorinert FC-70 flammable?
No. Fluorinert FC-70 is nonflammable with no flash point, providing safe operation in high-temperature soldering and thermal management applications.
What is the dielectric strength of Fluorinert FC-70?
Fluorinert FC-70 has a dielectric strength of 40 kV (0.1 inch gap), a dielectric constant of 1.98, and electrical resistivity of 2.3×10¹⁵ ohm cm, making it an excellent dielectric fluid for electronics applications.
How does Fluorinert FC-70 compare to FC-43?
FC-70 has a higher boiling point (215°C vs 174°C) and higher viscosity (12 cSt vs 2.5 cSt) compared to FC-43. FC-70 also has a higher molecular weight (820 vs 670) and is specifically designed for vapor phase soldering and high-temperature condensation reflow applications.
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-70 | 215°C | 12 cSt | -25°C | 40 kV | 820 | Vapor phase soldering |
| Fluorinert FC-43 | 174°C | 2.5 cSt | -50°C | 42 kV | 670 | Burn-in testing |
| Fluorinert FC-40 | 165°C | 2.2 cSt | -57°C | 46 kV | 650 | Wide range heat transfer |
Get 3M Fluorinert FC-70 Bulk Pricing and Technical Support
We supply genuine 3M Fluorinert FC-70 electronic liquid for vapor phase soldering, high-temperature heat transfer, and electronics 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.
