Fluorinert™ FC-70

BP=215˚C

A unique combination of properties and a high boiling point (215 deg C) makes this liquid ideal for many electronics applications, including high temperature heat transfer, vapor phase reflow soldering and many electronic quality and reliability tests.  FC-70 liquid is chemically stable, compatible with sensitive materials, nonflammable and practically non-toxic.

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.

Vapor Phase Reflow Soldering Fluids
The saturated vapor generated from boiling Fluorinert liquid FC-70 is very dense and easily contained. The fluid is typically used with solders like 63 Sn/37 Pb, 60 Sn/40 Pb, or 62 Sn/36 Pb/2 Ag. FC-70liquid can be used in a variety of vapor phase reflow soldering applications, Including;

Testing Fluids

The high dielectric strength and wide liquid range (-25°C to 215°C) of Fluorinert liquid FC-70 make it an ideal liquid for use in electronic reliability testing. Components may be tested both physically and electronically while immersed in this non-conductive liquid. In addition, tested devices dry quickly with no residue, and require no post-test cleaning.

Heat Transfer Fluids
The high boiling point of Fluorinert liquid FC-70 (215°C) and its excellent heat transfer properties make it an ideal fluid for use in high temperature thermal management applications. Also, its high dielectric constant means it will not damage electronic equipment or semiconductor wafers in the event of a leak or other failure.

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 non- fluorinated 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 30˚C to 215˚C and pour points as low as -127˚C.

AMS - 3M - Fluorinert FC-70

AMS - 3M - Testing Fluids