Vaculub T351
High and low temperature ultra-vacuum grease
Description:
SEIVIO Vaculub T351 high and low temperature ultra-vacuum grease is refined from linear perfluoropolyether oil with extremely low vapor pressure, thickened with ultra-fine PTFE, and added with special anti-corrosion additives. Special vacuum grease specially designed for space high vacuum, extreme temperature changes, atomic oxygen, radiation, and microgravity environments.
Benefits:
- Wide working temperature, good high temperature resistance and low temperature characteristics;
- Small evaporation loss under high vacuum, inhibiting molecular migration from contaminating optical devices;
- It does not freeze at low temperatures and has small starting torque, ensuring operating accuracy and sensitivity;
- Resistant to cosmic radiation, high-energy particles and ultraviolet rays, and the molecular chain is not easily broken and degraded;
- Has good high temperature stability and vacuum stability;
- Extremely low oil separation can inhibit pollution caused by grease flying;
- It resists migration in microgravity and is not easy to flow or crawl to surrounding non-lubricated areas in a zero-gravity environment;
- It has extremely high chemical stability and does not react with acids, alkalis and highly active substances.
Product specifications:
Performance | data |
color | Visual inspection |
texture | smooth |
smell | mild |
Specific gravity, (20°C） | approx.1.85 |
Drop point,ASTM D-2265 | None |
viscosity,cSt @ 40℃ | approx.150 |
cone penetration,ASTM D-217 @ （25℃） | 265-295 |
evaporation,ASTM D972，（22h，204℃） | 0.09 |
viscosity index,ASTM D-2270 | 354 |
copper corrosion,ASTM D4048 | 1B |
vapor pressure,20℃，pa | 5.3x10-10 |
200℃，pa | 7.2×10-4 |
operating temperature,℃ | -70~250 |
The data provided are typical representative values.Adjustments may be made during normal production that do not affect product performance, and the information contained herein is subject to change without notice. |
Applications:
Suitable for satellite solar wing deployment mechanism, antenna pointing mechanism, spaceborne precision bearings, lead screws, solar wing drive bearings, gyroscope/reaction wheel, thruster valve rotating parts. Deep space exploration equipment: space robotic arms, spacecraft docking mechanisms, lunar/Mars rover moving joints, scanning mirror hinges, space station movable parts, optical platform adjustment mechanisms; also used in ground ultra-high vacuum simulation cabins, as well as semiconductor vacuum coating and etching equipment (PVD/CVD), vacuum scientific research equipment: vacuum chambers, mass spectrometry, synchrotron radiation, particle detection, superconducting magnets, nuclear magnetometers, etc.
Packaging:
1kg/can Order number 195630
Storage:
Store in a dry place.
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