Tec-Flon 610FG is a wide temperature range, synthetic, fluorinated grease. It is intended for use in systems where non-reactivity with harsh chemicals including strong acids and oxidizers, fuels, solvents, etc. is an important factor. The grease is suitable for use in applications including electrical contacts, valves, threads, screws, bearings and in systems employing elastomeric and plastic seals, gaskets and o-rings. Although Tec-Flon 610FG is very inert, newly exposed rubbing surfaces of aluminum and magnesium may react with the grease under certain extreme conditions. Our Tec-Flon 610FG-RP version contains a rust prohibitor.