Krytox™ Performance Lubricants for the Aerospace and Aviation Industries.

Krytox™ lubricants were initially developed by DuPont in the early 1960s specifically for the precise and demanding lubrication needs of the aerospace industry. Krytox™ synthetic lubricants have since replaced hundreds of special-formula, hydrocarbon-based oils and greases throughout the aerospace and aviation industries, thanks to a long list of superior performance characteristics and certifications.

  • Suborbital, orbital and deep space flight – require ironclad reliability and lifetime lubrication for critical components that must operate flawlessly in high vacuum and extreme temperatures, as well as endure exposure to fuels, oxidizers and radiation.
  • Commercial, corporate and military aviation – demands safety, reliability and compliance with a wide range of precise military specifications, as well as reduced maintenance requirements.

Krytox™ aerospace greases are available in grades conforming to/applicable under:

  • MIL PRF-27617 Types I, II, III, IV
  • CAGE Code No. 43S57 (manufacturing)
  • CAGE Code No. 7GFT8 (business)

Krytox™ perfluoropolyether- (PFPE-) based oils and greases provide a remarkable list of properties for aerospace applications, including:

  • Unaffected lubricity and viscosity within a wide temperature range: -70 °C to 399 °C (-100°F  to 750 °F)
  • Stable physical properties over time – Krytox™ lubricants are virtually unaffected by harsh environments like shock, vibration, heat, pressure and caustic chemicals such as rocket fuels and oxidizers, as well as being radiation resistant
  • Resistance to vapor loss in a vacuum, such as during high altitude, orbit or deep space flight
  • Excellent friction-reduction characteristics provide long wear and low energy consumption
  • Compatible for use with most metals, elastomers, plastics, paints and finishes
  • Nontoxic, non-flammable, inert and non-evaporative
  • Krytox™ 240AB and 240AC greases are NSF H1-certified for incidental food contact in food processing areas, such as commercial airline galleys
  • World-class technical consultation tailored to the needs of the aerospace community

In certain applications such as fan motors, Krytox™ grease can even provide Lubed-For-Life performance, eliminating the potential for failure due to lubrication over the lifetime of the part.  This means there is a no longer a need for re-lubrication, which increases the time between servicing as well as decreasing downtime and overall costs.  These applications include:

  • Auxiliary drive spine shafts
  • Fan Motors
  • Control Valves

Additional aerospace lubricant applications include:

  • Bearings – all types, including high-speed bearings, synchronous motor bearings in gyroscopes, thrust & vector control bearings
  • Seals – valves and pumps
  • Lubricants for space suits
  • O-rings – sealants, lubricants
  • Oxygen breathing systems for vehicle and space suit valve and pump packing seals, mechanical seals and connectors
  • Rocket engine assemblies:  liquid-fueled turbines, gimbals, pumps, reduction gears, valves with fuel/oxidizer exposure, threaded fasteners and metal connectors
  • Valve and thread lubricant for aggressive systems
  • Wing flap actuator
  • Traction motors on lunar rover
  • Assembly fluid and mobile magnetic barrier fluid to separate oil and water

>> Learn more about Aerospace Grade Oils and Greases 

Krytox™ Aviation Application Overview
Krytox™ is the lubricant of choice for demanding conditions — high and low temperatures, extreme pressure, harsh environments.


Krytox™ lubricants are formulated in a wide range of oils and greases for the requirements of many different aviation applications.


Krytox™ aerospace lubricants were created by DuPont to withstand the rigors of orbital flights in the vacuum of space.