Castrol Braycote 804
Grease, Aircraft and Instrument
Fuel and Oxidizer Resistant
In 2 ounce (AVDP) disposable plastic syringes
Braycote 804 meets the requirements of and is qualified to
MIL-PRF-27617F, Type I.
Castrol Braycote 804 is a smooth, buttery, translucent white NLGI #1 grease, based on a perfluoropolyether base
oil. It is thermally stable, nonflammable, chemically inert to commonly used fuels, solvents, corrosive chemicals
and oxidizers. 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 804 Application
Braycote 804 is designed for static and dynamic lubrication of taper plug valves, gaskets and bearings in fuel
systems of aircraft and ground support equipment. It is also suitable for use in the presence of oxygen (LOX/GOX)
and other highly oxidative materials as a lubricant for valves, threads, and bearings in aerospace vehicles and
supporting equipment. Perfluorinated greases, in general, exhibit excellent shelf lives due to their intrinsic
149ºC (-65ºF to 300ºF).
Braycote 804 is compatible with all commonly used plastic,
elastomer and metallic materials of construction. It
may be adversely
affected by Lewis Acids such as aluminum chloride, at elevated temperatures.
surfaces of aluminum, magnesium or titanium alloys may react with
Braycote 804 under certain conditions. Such
systems should be thoroughly
evaluated. Surfaces must be well cleaned of organic rust inhibitors prior to
application to insure proper lubrication.