3M™ NOVEC™ 649

Heat Transfer Fluid


3M™ NOVEC™ 649 is a clear, colourless, low-odour fluid developed by 3M to replace ozone destructive substances (ODS) and solvents with high global warming potential (GWP) in many applications.

3M™ NOVEC™ 649 fluid is compatible with a wide range of materials and requires no special piping or handling systems, it is also stable in storage.



Its high dielectric constant makes it safe for direct contact in most electronic and computer applications.

Its chemical and thermal stability, non-flammability and low toxicity make it useful for many other industrial and Heat Transfer applications, with a boiling point of 49ºC.

3M™ NOVEC™ 649 fluid must be used in a sealed system to avoid interaction with water; furthermore, fluoroketones such as this product, although reactive with water (i.e. a separate aqueous phase), are remarkably stable in its absence up to over 300°C.



The following are examples of systems in which this fluid can be used:

  • Organic Rankine Cycle (ORC: systems that convert heat into electricity using a high molecular weight organic substance as working fluid)

- Diesel engines

- Generators

- Geothermal applications

- Solar applications

  • Electronics cooling (single-phase or two-phase)

- Power electronics such as IGBTs or inverters

- Transformers and other equipment (SF6 replacement)

- Computer/data centre cooling



  • 5 kg drum
  • 20 kg drum
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