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Braycote 602EF
Grease, Molybdenum Disulfide Compound,
Rocket Propellant Compatible, Low Temperature

braycote 602 EF

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.Castrol Braycote 602 EF

Braycote 602 EF Temperature Range
-80C to 204C (-112F to 400F)

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, 25C (77F), mm -1

Unworked

268

Worked, 60 strokes

273

D 2265

Braycote 602 EF Dropping Point, F (C)

460 (238)

FTM 321

Oil Separation, % wt

30 hrs, 204C (400F)

10.8

Evaporation Loss, %

0.12

D 2266

Braycote 602 EF Four-Ball Wear-Test, AWSD @ 167C, mm 1200 rpm, 40 Kg, 1 hr

@ 75C (167F)

1.15

@ 204C (400F)

1.04

BOC

Braycote 602 EF Evaporative weight loss, 72 hrs at 450F (232C)

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, 125C (257F), 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

@ -62C (-80F) Starting

585

Running, 1 hr

228

@ -73C (-100F) Starting

592

Running, 1 hr

429

Braycote 602 EF Base Oil Characteristics

D 287

Braycote 602 EF Specific Gravity @ 20C (68F)

1.85

Pounds per gallon @ 20C (68F)

15.4

D 445

Braycote 602 EF Kinematic Viscosity, cSt  

@ 99C (210F)

45

@ 38C (100F)

148

@ -54C (-65F)

11,500

D 2270

Braycote 602 EF Viscosity Index

350

D 97

Braycote 602 EF Pour Point, C (F)

-72 (-100)

Knudsen

Braycote 602 EF Vapor Pressure, torr  

@ 20C (68F)

4 x 10-13

@ 100C (212F)

2 x 10-9

@ 200C (392F)

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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Castrol Braycote 602 EF