TECHNICAL ADVICE
+44 (0)1743 466200   
support@acota.co.uk

3M™ Fluorinert™ Electronic liquids are part of a family of fully-fluorinated compounds known as perfluorocarbons, or PFCs. Fluorinert liquids are premier heat transfer fluids, and have long been used as heat transfer media for extreme cooling applications.

Originally used for direct contact cooling due to their stability, Fluorinert™ liquids are also used in a variety of semiconductor operations such as automated testing, etching, deposition, photolithography and more.

MIL-STD 883, Test Method 1014, MIL-STD 750, Test Method 1071, and MIL-STD 202, Test Method 112 specify Fluorinert liquids for gross leak testing of microelectronic circuits and components.

Fluorinert™ liquids offer:

  • Excellent dielectric properties
  • Wide range of boiling points
  • Good materials compatibility
  • Low toxicity
  • Non flammability


  • Zero Ozone Depletion Potential (ODP)

FC-3284   FC-72  FC-770  FC-3283  FC-40  FC-43 
Boiling Point(°C)  50 56  95  128  155  174 
Pour Point (°C)  -73 -90  -127  -50  -57  -50 
Vapour Pressure (kPa)  35.7 30 6.6 1.4  0.43 0.19
Liquid Density (kg/ 1710 1680  1793  1820  1850  1860 
Co-efficient of Volume Expansion(°K-¹)  0.0016 0.0016  0.0015 0.0014  0.0012  0.0012 
Kinematic Viscosity (mm2/s)  0.42 0.38  0.79  0.75  1.8 2.5 
Absolute Viscosity 0.71 0.64  1.4 1.4  3.4 4.7 
Specific Heat (J kg-¹ °K-¹)  1100 1050  1038 1100 1100 1100
Heat of Vapourisation @ B.P. (kJ/kg) 105 88  86  78 68 70
Dielectric Strength (kV, 2.54mm gap)  >40 >40  >40  >40  >40  >40 
Dielectric Constant (1 KHz)  1.86 1.76  1.86  1.89  1.89  1.90 
Volume Resistivity(Ω cm)  2.3x1015 1.0x1015 3.0x1014 5.0x1015 4.0x1015 5.6x1015

View the 3M Thermal Management Fluids brochure 

Sectors We Work In

Aerospace Automotive Defence Electronics Medical Micro-mechanical Optics Pharmaceutical Science & Research

SUBSCRIBE