Braycote 640 AC, 2oz U6 NM0005-2050 156AD6 / 25021-AESY|
Castrol Braycote 640
Grease, Perfluoroether Propellant and
Castrol Braycote 640AC is a white,
smooth, homogeneous NLGI Grade 2 grease based upon a blend of a perfluoroether
base oil and a tetrafluoroethylene telomer. Castrol Fluoroclean™ X100 or
Castrol Fluoroclean™ HE can be used to remove this lubricant. Refer to the data
sheets for information regarding these products.
Braycote 640AC is designed as an
oxidizer and propellant compatible grease suitable for use in aerospace
vehicles, spacecraft, rocket and aircraft engines and associated ground support
equipment, oxygen equipment, and transport equipment. Braycote 640AC is
typically used in the lubrication of threaded fasteners, connectors, valves,
gaskets, elastomers and bearings. Perfluorinated greases, in general, exhibit
excellent shelf lives due to
their intrinsic inertness.
-36ºC to 204ºC (-30ºF to 400ºF) under
normal operating conditions and up to 260ºC (500ºF) for short durations.
Braycote 640AC is compatible with all
commonly used metals, plastics and elastomers. Braycote 640AC may be adversely
affected by Lewis Acids such as aluminum chloride, at elevated temperatures.
Newly exposed rubbing surfaces of aluminum, magnesium, or titanium alloys may
react with Braycote 640AC under certain conditions. Such systems should be
thoroughly evaluated. Surfaces must be well cleaned of organic rust inhibitors
prior to grease application to insure proper lubrication. This product is not
recommended for use in applications under high vacuum with loads exceeding
100,000 psi for extended periods of time.
Braycote 640AC is available in 2 ounce
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