High-Performance Heat Transfer Fluids & Dielectric Fluids for Advanced Industrial Applications
OEM-Approved Fluorinated Engineering Fluids | Bulk Supply | Global Distribution
These products are used as replacement and alternative solutions to 3M™ FC-40 in various industrial applications.
OVERVIEW
Dielectric fluids are electrically non-conductive heat transfer liquids engineered for high-performance thermal management applications where electrical insulation, chemical stability, and long-term reliability are critical. Unlike conventional coolants, dielectric heat transfer fluids allow direct contact with sensitive electronic components without the risk of short circuits or electrical discharge. This makes them ideal for advanced industrial systems operating under high voltage, high density, and precision temperature control environments.
Dielectric fluids are electrically non-conductive heat transfer liquids engineered for high-performance thermal management applications where electrical insulation, chemical stability, and long-term reliability are critical.
Unlike conventional coolants, dielectric heat transfer fluids allow direct contact with sensitive electronic components without the risk of short circuits or electrical discharge. This makes them ideal for advanced industrial systems operating under high voltage, high density, and precision temperature control environments.
APPLICATIONS
Dielectric Bath
Electronic Testing
Gross Leak Testing
Heat Transfer
Semiconductor Cooling
Thermal Shock Testing
CVD and TFT systems
Power electronics and avionics
Ion implanters and etchers
Data center immersion cooling
High-performance computing systems
Single-phase immersion cooling fluid
PROPERTIES & COMPARISON
| Property | FC-40 | TMC-40 | TMC-40E | AD-40 | XP-68 | Galden D02 |
|---|---|---|---|---|---|---|
| Boiling Point | 165 °C; operating range –57 °C to 165 °C | 165 °C (identical by spec) | 165 °C | 165 °C | 165 °C | ~165 °C |
| Pour / Freezing Point | –57 °C | –57 °C | –57 °C | –57 °C | –57 °C | –57 °C |
| Density | 1855 kg/m³ | Same | Same | Similar | Similar | Approx 1800–1900 kg/m³ |
| Kinematic Viscosity (25 °C) | 2.2 cSt (abs: 4.1 cP) | Same | Same | Similar | Similar | ~2.2 cSt |
| Dielectric Constant | 1.9 @1 kHz | Same | Same | ~1.9 | 1.8–2.0 | ~1.9 |
| Dielectric Strength | 46 kV (0.1" gap) | >40 kV | >40 kV | >40 kV | ≥40 kV | ~40–45 kV |
| Thermal Conductivity (25 °C) | 0.065 W/m·K | Same | Same | Same | Approx same | Approx 0.065 |
| Latent Heat of Vaporization | 69 J/g | Same | Same | Similar | Approx same | ~69 J/g |
| Surface Tension | 16 dynes/cm | — | — | — | — | — |
| Water Solubility | <5 ppm | — | — | — | — | — |
| GWP / ODP | Zero ODP; high GWP | Same | Same | Same | Same | High GWP; zero ODP |
| Materials Compatibility | Excellent with most metals/plastics | Same | Same | Same | Same | Excellent |
| Toxicity & Safety | Low toxicity, nonflammable | Similar | Similar | Low toxicity | Low toxicity | Low toxicity |