3M™ Fluorinert™ Liquids are a family of clear, colorless, odorless perfluorinated
fluids having a viscosity similar to water. These non-flammable liquids have set the
standard in the electronics industry for over 40 years, meeting the demanding and
diverse requirements of many heat transfer, manufacturing and testing applications.
Fluorinert liquids are thermally and chemically stable, compatible with most
sensitive materials, including metals, plastics and elastomers, and are practically
non-toxic through normal routes of industrial exposure.
Fluorinert liquids are completely fluorinated, containing no chlorine or hydrogen
atoms. The strength of the carbon-fluorine bond contributes to their extreme
stability and inertness. This chemical structure also results in very low
intermolecular forces, low surface tension and essentially no solvent action on nonfluorinated
compounds.
The dielectric strength of perfluorinated liquids is high—in excess of 35,000 volts
across a 0.1 inch gap. Water solubility is on the order of a few parts per million.
The nominal boiling point of each fluid in this series is determined during their
manufacture. Fluorinert liquids are available with boiling points ranging from
30ºC to 215ºC and pour points as low as -101ºC.