
Braycote 631RP Product
Description:
Castrol Braycote 631RP is a smooth, buttery, off-white NLGI #2 grease based upon a perfluoroether oil. This
grease is nonflammable and is in general chemically inert. It is thermally stable either alone or in the presence
of oxygen, has exceptionally low volatility, and has little tendency to form deposits. In addition Braycote
631RP exhibits excellent lubricating properties, good dielectric properties, and shear stability. Castrol
Fluoroclean™ X100 and Castrol Fluoroclean™ HE can be used to remove this lubricant. Refer to the data
sheets for information regarding these products.
QC Lubricants carries Braycote 631RP in
drums only.
Braycote 631RP Application:
Braycote 631RP is designed for static or dynamic service in the presence of fuels and oxidizers. It has been
used in gears, ball and roller bearings, electrical contacts, and as a thread and elastomer sealant.
Braycote 631 RP is
particularly useful as a lubricant in corrosive or oxygen (LOX/GOX) service and as a plug valve lubricant.
Braycote 631RP is compatible with concentrated acids and bases and it does not hydrolyze or oxidize. Perfluorinated
greases, such as Braycote 631RP, exhibit excellent shelf lives due to their inertness.
Braycote 631RP Typical Properties:
.

CASTROL Braycote 631RP
Additional Information:
Temperature Range:
-54ºC to above 204ºC (-65ºF to above 400ºF)
Limitations:
Braycote 631RP is only slightly soluble or insoluble in most current fuels and oxidizers in propellent service,
and in most organic solvents and materials other than fluorinated solvents.
Braycote 631RP is compatible at normal operating
temperatures with conventional metals, plastics and elastomers.
Braycote 631 RP 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 631RP 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.
Braycote 631RP is not recommended for use in applications under
vacuum and loads exceeding 100,000 psi for extended periods of time.
Health, safety and environmental information are provided for
this product in the Materials Safety
Data Sheet. This gives details of potential hazards,
precautions and First Aid measures, together with environmental
effects and disposal of used products. Castrol will not accept
liability if the product is used other than in the manner or with
the precautions or for the purpose(s) specified. Before using the
product other than directed, please contact Castrol for
consultation.
As with any product we
carry at QC Lubricants, if you have any questions, please give us a
call. Our dedicated staff is eager to hear from you!



