OC Seven Oxygen Compatible Grease

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OC® Seven Paste, a blend of polytetrafluoroethylene (PTFE) particles and Halocarbon® oil, is a homogenous off-white lubricant that is chemically inert and environmentally safe.

OC Seven Oxygen Compatible Paste can be used in high vacuum (10-7 torr) applications where exposure to corrosive gases, pure oxygen, or harsh chemicals is probable. It provides leak-tight sealing in a wide range of high pressure vacuum applications, including O-rings, gaskets, bearings, and stopcocks. OC Seven provides unique properties over a wide temperature range – from cryogenic through thermally stable to +450ºF. It is non-flammable, non-migrating, non-toxic, odorless, and waterproof as well as anti-corrosive, anti-galling, anti-seize, dielectric, and lubricating.

OC Seven is cost effective for liquid oxygen, liquid nitrogen, cryogenic, and vacuum applications to prevent and reduce component and equipment failures, maintenance, or downtime.

OC Seven is available in 2 oz. (57 gram) and 16 oz. (454 gram) jars with resealable lid for ease of use and storage.

Not recommended for aluminum against aluminum applications. Do not use with concentrated alkalis, fluorine (liquid), or chlorine trifluoride (liquid).

  • Waterproof
  • Anti-galling
  • Anti-corrosive
  • Anti-seize
  • Chemically inert
  • Non-toxic
  • Non-flammable
  • Non-migrating
  • Odorless
  • Dielectric
Areas of Application
  • Industrial gas and offshore rigging
  • Medical equipment
  • Water and waste water processing and treatment
  • O-rings, gaskets, bearings, stopcocks
  • Welding
  • Cryogenics
  • Chlorine, oxygen, and nitrous oxide systems

OC® Seven Grease is compatible with many aggressive chemicals, including:
AcetyleneEthyleneOxygen (liquid and gaseous)
Ammonium hydroxideFluorine (gaseous)Phosphoric acid
Ammonium nitrateFuming nitric oxidePotassium perchlorate
Ammonium percholrateHeliumPotassium persulfate
Antimony trichlorideHydrogenPropylene oxide
Boron trifluorideHydrogen bromideSilane
BromineHydrogen fluorideSilicone tetrachloride
Bromine trifluoride (gaseous)Hydrogen peroxide (all concentrations)Sodium
Calcium hypochloriteHydrogen sulfideSodium hydroxide (all concentrations)
Carbon dioxideHydroiodic acidSulfur trioxide
Chlorine trifluoride (gaseous)IodineSulfuric acid
ChlorosilanesMuriatic acidThionyl chloride
Chlorosulfonic acidNitric acidTitanium tetrachloride
Chromic acidNitrogen trifluorideUranium hexafluoride
Chromyl nitrateOleum