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Description
Castrol Braycote? 803 is a smooth, buttery, translucent-white, NLGI #2, grease, based on perfluoropolyether oil and
thickened with a tetrafluoroethylene gelling agent. This product provides excellent lubricity, oxidative and thermal stability,
low volatility, good shear stability, low acute toxicity and contain no sodium or other alkali metal containing ingredients.
Castrol Fluoroclean? X100 or Castrol Fluoroclean? HE can be used to clean this product. Refer to the data sheets for
information regarding these products.
Application
Braycote 803 was developed for use in applications where long term exposure to high temperature or high vacuum is
expected. This product is fully compatible for use in both direct and indirect contact with liquid and gaseous oxygen (LOX/
GOX). Braycote 803 is stable with exposure to strong acids and oxidizers. Perfluorinated greases, in general, exhibit
excellent shelf lives due to their intrinsic inertness.
Below -62oC to above 260oC (below -80oF to above 499oF). Lower temperature operation below -62oC (-80oF) is possible
where adequate torque is available.
Conditions of Use
Braycote 803 is compatible with most commonly used construction materials including metals, plastics and elastomers.
This product may be adversely affected by Lewis Acids such as aluminum chloride, at elevated temperatures. Newly
exposed rubbing surfaces of aluminum, magnesium or titanium alloys at elevated temperatures may react with Braycote
803 under certain conditions. Such systems should be thoroughly evaluated. Surfaces must be well cleaned of organic
rust inhibitors prior to grease application to ensure proper lubrication