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greases advancedengineering electronics/optoelectronics




A stiff methyl silicone/Teflon grease for high vacuum and pressure systems.


  • A stiff methyl silicone/Teflon grease
  • Stable across a broad temperature range
  • Typical vapor pressure of 10-8 torr
  • Resistant to chemicals


  • Provides more tack and excellent lubricating and sealing ability under extreme operating conditions
  • For extreme high vacuum and pressure systems
  • Specific applications include: glass and ceramic stopcocks, ground glass joints, and high temperature gaskets, valves, seals and O-rings

Meets or exceeds the ASTM E 595 low outgas specifications outlined in NASA SP-R-0022A and European Space Agency PSS-014-702, with a TML of ≤1% and CVCM of ≤0.1%

Product Details

Property Average result
Viscosity 1,100,000 cP
Specific Gravity 1.14
Volatile Content 0.34 %
Appearance White to Gray
Flow Rate 2.7 in
Operating Temperature -40 °C / 230 °C
Comment A stiff methyl silicone/Teflon grease for high vacuum and pressure systems.
Display in metric units

The above properties are tested on a lot-to-lot basis. Do not use as a basis for preparing specifications. Please contact NuSil Technology for assistance and recommendations in establishing particular specifications.

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