3M Novec 649

High-tech fluid 3M™ Novec™ 649

Highly effective heat management

3M Novec 649 Engineered Fluid is a highly effective thermal interface fluid. It is characterized by excellent operational reliability and environmental compatibility. It is suitable for use in closed, water-free systems. 3M Novec 649 Engineered Fluid is a fluoroketone. It is clear, colorless, and low-odor, and is liquid in a temperature range of -108°C to +49°C.
Typical applications include ORC systems, thermo-siphon systems, 2-phase pump systems, fuel cells, and others. 

3M™ Novec™ 649 is discontinued 

We offer the chemically identical replacement!
FK-649 is an exact molecular replacement for the discontinued Novec™ 649 (CAS 756-13-8). 
FK-649 is a high purity fluorinated ketone liquid (at least 99.9%) that is ideal as an electronics immersion cooling and heat transfer fluid. 

• Non-flammable
• Electrically non-conductive
• Low global warming potential (GWP)
• No ozone depletion potential (ODP)
• Clear, colorless, low odor
• Wide temperature range of the liquid
• Low toxicity 

Application examples:

FK-649 is used in a variety of heat transfer and immersion cooling applications

• Electronics cooling (single- or two-phase) 
• Power electronics such as IGBTs or inverters
• Transformers and other devices (SF6 replacement)
• Immersion cooling for data centers and computers
• Organic Rankine cycle
• Diesel engines
• Generators
• Geothermal energy
• Solar applications

For heat transfer applications, its favorable environmental, health, and safety characteristics make it a long-term sustainable solution, helping to improve reliability, address environmental concerns, and reduce total cost of ownership. This makes FK-649 particularly suitable for heat transfer, electronics cooling, and thermal management applications where flammability or environmental impacts are a concern. 

Properties of FK-649 compared to 3M™ Novec™ 649

Here's the alternative: FK-649