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Braycote 601 EF
Grease, Rust Preventive, Rocket Propellant Compatible
Low Temperature

braycote 601 EF

Braycote 601 EF Description:
Castrol Braycote 601 EF is a smooth, buttery, translucent, off-white, NLGI #2 grease. Its base oil (Castrol Brayco 815Z) is a perfluorinated polyether, with exceptional chemical resistance, extremely low volatility, and a wide temperature service range. The grease is non-toxic, nonflammable, and does not use any chlorofluorocarbons (CFC's) during product manufacture. Castrol Braycote 601 EF exhibits unusually high load-carrying capabilities as measured by the Four-Ball EP Test, and contains a rust and corrosion inhibitor for extra component protection. Castrol Fluoroclean X100 or Castrol Fluoroclean HE can be used to remove this lubricant. Refer to the data sheets for Castrol Fluoroclean X100 and Castrol Fluoroclean HE for information regarding these products. Castrol Braycote 601 EF with molybdenum disulfide is also available for applications requiring both corrosion and extreme pressure additives.Castrol Braycote 601 EF

Braycote 601 EF Temperature Range
-80C to 204C (-112F to 400F)

Braycote 601 EF Uses:
Braycote 601 EF is designed to operate in the presence of rocket fuels, oxidizers and high vacuum. It is frequently used in space applications including the Space Shuttle and satellites. It should also be considered in any application where a hostile chemical or extreme environmental conditions would preclude the use of an ordinary grease.
Typical applications include ball and roller bearings, gears, and as an assembly lubricant for O-rings and elastomers.
Perfluorinated greases, such as, this product, exhibit excellent shelf life due to their intrinsic inertness.

Braycote 601 EF Limitations:
Braycote 601 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 and 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 601 EF Packaging: QC Lubricants carries Braycote 601 EF in 2 oz and 4 oz (AVDP) disposable polypropylene syringes.

 

Braycote 601 EF Typical Properties:
 

TEST METHOD

DESCRIPTION

RESULT

D 1403

Braycote 601 EF Penetration @ 25C (77F), mm -1

Unworked

285

Worked, 60 strokes

286

FTM 321

Braycote 601 EF Oil Separation, 30 hrs, 204C (400F), % wt

11.10

Evaporation Loss, % wt

0.62

D 1743

Braycote 601 EF Rust Prevention

1,1,1,Pass

FTM 5309

Braycote 601 EF Copper Strip Corrosion, 24 hrs, 100C (212F)

1b

D 2266

Braycote 601 EF Four-Ball Wear-Test, AWSD, mm 1200 rpm, 40 kgf load, 1 hr, 75C (167F)

0.91

D 2265

Braycote 601 EF Dropping Point, C (F)

213 (415)

D 2596

Braycote 601 EF Four-Ball Extreme-Pressure Weld, kgf

800+

E 595

Braycote 601 EF Vacuum Stability Test

NASA

Braycote 601 EF 24 hrs, 125C (257F), 10-6, torr

SP-R-0022A

Braycote 601 EF Total Weight Loss (TWL), % wt

0.36

Braycote 601 EF Volatile Condensable Material (VCM), % wt

0.03

D 1478

Braycote 601 EF Low-Temperature Torque, g.cm @ -62C (-80F)

Starting

585

Running, 1 hr

228

@ -73C (-100F)

Starting

1430

Running, 1 hr

637

D 2512 (MSFC 106)

Braycote 601 EF LOX Impact Sensitivity 100 mm, 20 drops

Pass

D 2595

Braycote 601 EF Evaporation Loss, % wt, 22 hrs, 204C (400F)

0.87

FTM 3005 Particles

Braycote 601 EF Micron Range

25 -74 microns

116

75 microns or larger

None

1420

Pounds per gallon @ 16C (60F)

16.70

Grams per milliliter @ 16C (60F)

1.948

Braycote 601 EF Base Oil Characteristics
 

D 287

Specific Gravity @ 16/16C (60/60F)

1.8531

Pounds per Gallon @ 16C (60F) 15.430

D 445

Kinematic Viscosity, cSt   

@ 99C (210F) 45
@ 38C (100F) 148
@ -54C (-65F) 10,855

D 2270

Viscosity Index

350

D 97

Pour Point, C (F)

-72 (-100)

Knudsen

Vapor Pressure, torr  

@ 20C (68F) 4 x 10-13 
@ 100C (212F) 2 x 10-9
@ 200C (392F) 2 x 10-6

 

Braycote 601 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.

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Castrol Braycote 601 EF