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Braycote 602EF
Grease, Molybdenum Disulfide Compound,
Rocket Propellant Compatible, Low Temperature
Braycote 602 EF Description:
Castrol Braycote 602 EF is a smooth, buttery, gray colored NLGI #2 grease. The
base fluid (Castrol Brayco 815Z) is a stable perfluorinated polyether with
exceptional chemical resistance, extremely low volatility, and a wide
temperature service range. The gelling agent is a tetrafluoroethylene telomer.
This grease contains molybdenum disulfide. This product is nonflammable, does
not use any chlorofluorocarbons (CFC's) during product manufacture, and is in
general, chemically inert. It is an excellent lubricant, has good shear
stability, and low acute toxicity. Castrol Fluoroclean™ X100 or Castrol
Fluoroclean™ HE can be used to remove this lubricant. Refer to the data sheets for these products for more information.
Braycote 602 EF Temperature Range
-80ºC to 204ºC (-112ºF to 400ºF)
Braycote 602 EF Uses:
Braycote 602 EF is designed to operate in the
presence of fuels, oxidizers, and deep space vacuums. Typical applications
include ball and roller bearings, gears, electrical contracts, and as an
assembly lubricant for Orings and elastomers. Braycote 602 EF is highly
recommended in applications where temperature extremes and/or low vacuums are routine. Perfluorinated greases, such as this product, exhibit
excellent shelf life due to their intrinsic inertness.
Braycote 602 EF
Limitations:
Braycote 602 EF is compatible with most commonly utilized materials, plastics,
and elastomers. It may be adversely affected by Lewis Acid catalysts such as
aluminum chloride, at elevated temperatures. Newly exposed rubbing surfaces of
aluminum, magnesium or titanium alloys may react with this product 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 602 EF Packaging:
QC Lubricants carries Braycote 602 EF in 2 oz and 4
oz (AVDP) disposable polypropylene syringes.
Braycote 602 EF Typical Properties:
|
TEST METHOD |
DESCRIPTION |
RESULT |
|
D 1403 |
Braycote 602 EF Penetration, 25ºC (77ºF), mm -1 |
|
Unworked |
268 |
|
Worked, 60 strokes |
273 |
|
D 2265 |
Braycote 602 EF Dropping Point, ºF (ºC) |
460 (238) |
|
FTM 321 |
Oil Separation, % wt |
|
|
30 hrs, 204ºC (400ºF) |
10.8 |
|
Evaporation Loss, % |
0.12 |
|
D 2266 |
Braycote 602 EF Four-Ball Wear-Test, AWSD @ 167ºC, mm 1200 rpm, 40 Kg, 1
hr |
|
@ 75ºC (167ºF) |
1.15 |
|
@ 204ºC (400ºF) |
1.04 |
|
BOC |
Braycote 602 EF Evaporative weight loss, 72 hrs at 450ºF (232ºC)
|
0.22 |
|
D 2596 |
Braycote 602 EF Four-Ball Extreme-Pressure Weld, Kg |
800+ |
|
AWSD @ 600 Kg, mm |
1.85 |
|
Spec |
Braycote 602 EF Molybdenum Disulfide Content, (Mil-M-7866), % wt
|
5 |
|
D 2512
(MSFC 106) |
Braycote 602 EF LOX Impact Sensitivity 1100 mm, 20 drops |
Pass |
|
E 595
NASA
SP-R-0022A |
Braycote 602 EF Vacuum Stability Test 24 hrs, 125ºC (257ºF), 10-6, torr
|
|
|
Total Weight Loss (TML), % wt |
0.21 |
|
Volatile Condensable Material (VCM), % wt |
0.04 |
|
D 3336 |
Braycote 602 EF High temperature bearing performance, hours |
700+ |
|
D 1478 |
Braycote 602 EF Low temperature torque, gm-cm |
|
@ -62ºC (-80ºF) Starting |
585 |
|
Running, 1 hr |
228 |
|
@ -73ºC (-100ºF) Starting |
592 |
|
Running, 1 hr |
429 |
|
Braycote 602 EF Base Oil Characteristics |
|
D 287 |
Braycote 602 EF Specific Gravity @ 20ºC (68ºF) |
1.85 |
|
Pounds per gallon @ 20ºC (68ºF)
|
15.4
|
|
D 445 |
Braycote 602 EF
Kinematic Viscosity, cSt |
|
@ 99ºC (210ºF) |
45 |
|
@ 38ºC (100ºF) |
148 |
|
@ -54ºC (-65ºF)
|
11,500 |
|
D 2270 |
Braycote 602 EF
Viscosity Index |
350 |
|
D 97 |
Braycote 602 EF
Pour Point, ºC (ºF)
|
-72 (-100) |
|
Knudsen |
Braycote 602 EF
Vapor Pressure, torr |
|
@ 20ºC (68ºF) |
4 x 10-13 |
|
@ 100ºC (212ºF) |
2 x 10-9 |
|
@ 200ºC (392ºF)
|
2 x 10-6
|
Braycote 602 EF 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. User accepts all risks and liabilities if the product is used other
than in the manner, with the precautions, or for the purpose(s) specified.
Braycote 602 EF and the Castrol logo are trademarks of Castrol Limited.
All reasonable care has been taken to ensure that the information contained in
this publication is accurate as of the date of printing. However, such
information may, nevertheless, be affected by changes in the blend formulation
occurring subsequent to the date of printing. The
MSDS
must be consulted for appropriate information regarding storage, safe handling
and disposal of a product.
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