
Immersion cooling fluids: what to confirm beyond breakdown voltage
A dielectric fluid's datasheet leads with breakdown voltage, but pour point, viscosity, flash point and material compatibility are the properties that decide whether it works.
Specialty coolants
A dedicated immersion-cooling range for data-centre server systems, developed around electrical insulation, thermal and oxidative stability and yellowing resistance. The catalogue states the fluids contain no corrosive sulfur.

Modified hydrocarbons
| Model | Pour point (°C) | Viscosity (cP) | Density (g/cm³) | Specific heat (cal/g·°C) | Thermal conductivity (W/m·K) | Flash point (°C) | Breakdown voltage (kV) |
|---|---|---|---|---|---|---|---|
| LM-17A | ≤−50 | 21.13 | 0.889 | 0.429 | 0.112 | 136 | 65.6 |
| LM-17B | ≤−47 | 14.97 | 0.884 | 0.424 | 0.109 | 138.5 | 74.5 |
| LM-17C | ≤−40 | 3.42 | 0.848 | 0.427 | 0.112 | 107 | 84.3 |
All properties are printed at 20°C. Pour point is not an operating-temperature limit, and breakdown voltage does not by itself establish electrical or equipment approval.
Catalogue reference values, not a final specification. Select the exact model and concentration with our technical team. Request the current technical data sheet and safety data sheet before use.
View source: catalogue page 28Combustible. Operating ranges are from the manufacturer’s product list (April 2026); pour point is not an operating-temperature specification. Confirm electrical test methods, equipment approvals and compatibility with all wetted materials before use.