描述
3M Fluorinert FC-72 Electronic Liquid Low Boiling Testing Fluid
Material: PFC (Perfluorocarbon)
Boiling Point: 56°C
Viscosity (25°C): 0.38 cSt
Pour Point: -90°C
Packing: 20 kg / drum
3M Fluorinert FC-72 is a clear, colorless, fully-fluorinated electronic liquid designed for electronics quality and reliability testing. With a low boiling point of 56°C and an extremely low pour point of -90°C, this high-purity perfluorocarbon (PFC) fluid conforms to Military Specification 883 as a detector fluid in vacuum/pressure vessel gross leak testing. Its inert nature, ultra-low viscosity of 0.38 cSt, and essentially no residue upon evaporation make FC-72 an ideal fluid for leak detection, electronics testing, and low-temperature heat transfer applications.
FC-72 offers outstanding thermal and chemical stability, compatibility with sensitive materials, and low toxicity. Its excellent dielectric properties — dielectric strength 38 kV, dielectric constant 1.75, and electrical resistivity 1.0×10¹⁵ ohm cm — provide reliable electrical insulation for sensitive electronic components. With an ultra-low surface tension of 10 dynes/cm and nonflammable characteristics, FC-72 ensures safe and effective performance in demanding testing and thermal management applications.
Genuine 3M Imported Stock and Technical Support
We supply stable spot inventory of genuine 3M Fluorinert FC-72 electronic liquid. Official TDS, SDS, and batch COA documents are available for electronics testing, leak detection, and low-temperature heat transfer applications.
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Complete SDS, COA, and customs clearance documents available
Core Advantages of 3M Fluorinert FC-72 Electronic Liquid
- Low boiling point: 56°C — ideal for low-temperature testing and vapor phase applications
- Ultra-low pour point: -90°C — one of the widest liquid ranges among Fluorinert products
- Extremely low viscosity: 0.38 cSt — lowest viscosity in the Fluorinert series for exceptional flow
- Military Spec 883 compliant — approved as detector fluid for gross leak testing
- Excellent dielectric properties — dielectric strength 38 kV, dielectric constant 1.75, resistivity 1.0×10¹⁵ ohm cm
- Ultra-low surface tension: 10 dynes/cm — excellent wetting and penetration for leak detection
- Nonflammable — no flash point, safe operation in testing environments
- Essentially no residue upon evaporation — clean performance for sensitive electronics testing
Main Applications
- Gross leak testing — detector fluid per Military Specification 883 in vacuum/pressure vessels
- Electronics quality and reliability testing — component testing and qualification
- Low-temperature heat transfer — cooling applications requiring extremely low temperatures
- Inert reaction medium — chemical processes requiring inert environment
- Vapor phase testing — low-temperature vapor phase applications
Full Technical Parameters
| Property | Typical Value | Test Method |
| Material | Perfluorocarbon (PFC) | — |
| Appearance | Clear colorless liquid | Visual |
| Average Molecular Weight | 338 g/mol | — |
| Boiling Point (@1 atm) | 56°C | ASTM D1078 |
| Pour Point | -90°C | ASTM D97 |
| Liquid Density (25°C) | 1.68 g/cm³ | ASTM D891 |
| Kinematic Viscosity (25°C) | 0.38 cSt | ASTM D445 |
| Absolute Viscosity (25°C) | 0.64 cP | — |
| Liquid Specific Heat | 1100 J kg⁻¹ °C⁻¹ | — |
| Liquid Thermal Conductivity | 0.057 W m⁻¹ °C⁻¹ | — |
| Surface Tension | 10 dynes/cm | — |
| Refractive Index | 1.25 | — |
| Dielectric Strength (0.1″ gap) | 38 kV | ASTM D877 |
| Dielectric Constant (@1 kHz) | 1.75 | ASTM D150 |
| Electrical Resistivity | 1.0×10¹⁵ 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-72 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-72?
Fluorinert FC-72 has a boiling point of 56°C at 1 atm and an extremely low pour point of -90°C, offering one of the widest liquid ranges among Fluorinert products for low-temperature testing and heat transfer applications.
What is the viscosity of Fluorinert FC-72?
Fluorinert FC-72 has an ultra-low kinematic viscosity of 0.38 cSt at 25°C and an absolute viscosity of 0.64 cP, the lowest viscosity among Fluorinert electronic liquids, providing exceptional flow characteristics.
What is the shelf life of Fluorinert FC-72?
Fluorinert FC-72 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-72 suitable for?
Fluorinert FC-72 is ideal for gross leak testing (Military Spec 883), electronics quality and reliability testing, low-temperature heat transfer, and as an inert reaction medium.
Is Fluorinert FC-72 flammable?
No. Fluorinert FC-72 is nonflammable with no flash point, providing safe operation in testing and heat transfer applications.
What is the dielectric strength of Fluorinert FC-72?
Fluorinert FC-72 has a dielectric strength of 38 kV (0.1 inch gap), a dielectric constant of 1.75, and electrical resistivity of 1.0×10¹⁵ ohm cm.
How does Fluorinert FC-72 compare to FC-3284?
Both FC-72 and FC-3284 have similar boiling points (56°C vs 50°C). FC-72 has lower viscosity (0.38 cSt vs 0.42 cSt), lower surface tension (10 vs 13 dynes/cm), and lower dielectric constant (1.75 vs 1.86). FC-72 is specifically designed for leak detection and electronics testing per Military Spec 883.
Related Fluorinert Series Fluids
Compare 3M Fluorinert electronic liquids for different testing and application requirements.
| Product Grade | Boiling Point | Viscosity (25°C) | Pour Point | Surface Tension | Molecular Weight | Core Application |
| Fluorinert FC-72 | 56°C | 0.38 cSt | -90°C | 10 dynes/cm | 338 | Leak testing, electronics testing |
| Fluorinert FC-3284 | 50°C | 0.42 cSt | -73°C | 13 dynes/cm | 299 | Low boiling cooling |
| Fluorinert FC-40 | 165°C | 2.2 cSt | -57°C | 16 dynes/cm | 650 | Wide range heat transfer |
Get 3M Fluorinert FC-72 Bulk Pricing and Technical Support
We supply genuine 3M Fluorinert FC-72 electronic liquid for leak testing, electronics reliability testing, and 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.
