Krytox™ XHT (Extreme High-Temperature) Greases and Oils

Lubricants That Perform Under the Toughest Conditions

Using base oils, thickeners, and additives with chemistry designed to create high and low viscosities, Krytox™ XHT (extreme high-temperature) lubricants are targeted for use in very high-temperature ranges.

While most petroleum products begin to degrade below 99 °C (210 °F) and become highly viscous at temperatures just below -18 °C (0 °F), Krytox™ XHT performance lubricants operate at significantly broader ranges (-70 to 360 °C [-94 to 680 °F]). Krytox™ XHT greases and oils can also perform in temperature spikes up to 400 °C (752 °F), when used in proper metallurgy with periodic relubrication.

Features and Benefits of Krytox™ XHT Lubricants

In addition to working in extreme temperatures, Krytox™ XHT lubricants offer:

  • Nonflammable: Krytox™ performance lubricants contain only carbon, oxygen, and fluorine. Because hydrogen is not present, they will not burn or support combustion, even in 100% liquid or gaseous oxygen.

  • Chemical inertness: Krytox™ performance lubricants are not only resistant to oxygen, but they are also inert to virtually all chemicals. They are insoluble in most solvents, except for highly fluorinated fluids and some supercritical fluids such as CO₂.

  • Thermal and oxidative stability: By differential thermal analysis, deterioration occurs at about 470 °C (878 °F) in the absence of air. When tested under nitrogen for six hours at 371 °C (700 °F), Krytox™ lubricants showed no increase in neutralization number or significant change in viscosity. The presence of air does not substantially lower the decomposition point of Krytox™ oils.

Reliable Lubricants Used Across Industries

Available in several grades that offer anti-corrosion, extra bonding, and non-melting properties, these lubricants are used across a variety of industries with critical needs.

These industries include:

  • Aviation and aerospace
  • Chemical processing
  • Manufacturing
  • Metal processing
  • Oil and gas exploration
  • Textile manufacturing