Description:
Castrol Brayco 815Z is a clear water white perfluorinated polyether based fluid. It is virtually inert, compatible with
rocket propellants and oxidizers, is unaffected by ultraviolet, cosmic radiation, or high vacuums. It has an exceptionally
high viscosity index and low volatility, and has little tendency to form deposits. This product is highly recommended for
use in applications at low temperature extremes and in high vacuum. It exhibits excellent lubricating properties, good
dielectric properties, excellent shear stability, and low toxicity. Castrol Fluoroclean™ X100 or Castrol Fluoroclean™ HE
can be used to remove this lubricant. Refer to the data sheets for information regarding these products.
Applications
Brayco 815Z is essentially insoluble in current fuels and oxidizers, as well as in most organic solvents. This product is
intended for use in extreme environments, and has been used successfully in many space missions and in sensitive
electronic equipment. It is particularly suited for those applications where extreme vacuums and wide temperature
variations are common. Perfluorinated fluids, in general, exhibit excellent shelf lives due to their intrinsic inertness.
Characteristics
| TEST METHOD |
DESCRIPTION |
RESULT |
| D 287 |
Specific Gravity @ 16/16°C (60/60°F)
Pounds per Gallon @ 16°C (60°F) |
1.8531
15.430 |
| D 445 |
Kinematic Viscosity, cSt
- @ 99°C (210°F)
- @ 38°C (100°F)
- @ -40°C (-40°F)
- @ -54°C (-65°F)
|
45
148
6,500
10,855 |
| D 2270 |
Viscosity Index |
350 |
| D 97 |
Pour Point, °C (°F) |
-72 (-100) |
| BOC |
Evaporation Loss, % wt
- 72 hrs, 232°C (450°F)
|
0.36 |
| D 664 |
Acid Number, mgKOH/g (end point, pH=8.2) |
0.01 |
| Knudsen |
Vapor Pressure, torr
- @ 20°C (68°F)
- @ 100°C (212°F)
|
4 x 10-13
2 x 10-9 |
E 595
NASA
SP-R-0022A |
Vacuum Stability Test
- Total Weight Loss, % wt
- Volatile Condensable Material, % wt
|
0.081
0.012 |
| FTM 3009 |
Solid Particle Contamination Number of Particles per 100 mL
- 5 - 15 microns
- 16 - 25 microns
- 26 - 50 microns
- 51 - 100 microns
- + 100 microns
|
163
42
16
4
Nil
|
Temperature Range:
-72°C to above 204°C (-100°F to 400°F) under normal operating conditions and up to 260°C (500°F) for brief periods.
Limitations:
Brayco 815Z is compatible with all 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 oil application to ensure proper
lubrication.
Removal of unwanted grease from grease applied surfaces:
The composition of this product is a mixture of small PTFE particles
(which won't dissolve in anything) and a perfluorinated polyether liquid.
We have found that
Castrol® Fluoroclean™ HE is an effective solvent for
the liquid component of the formulated composition and aids in the removal
of the grease from places where it is no longer needed or wanted.
Packaging:
Brayco 815Z is packaged in 2 ounce (AVDP) bottles and in 1 pound jars. A specially prepared "Micronic" grade - ultra
filtered - is available on request.
To Ask a Question or Make a Comment