Apiezon L Grease is a silicone and halogen-free ultra high vacuum lubricant / grease suitable for use scientific and industrial applications. Apiezon L Grease has the best vapour pressure properties of all the Apiezon products and is therefore suitable for use in ultra high vacuum applications. Apiezon L Grease is regularly used by highly respected organisations such as The European Space Agency, NASA and NATO.
Apiezon L Grease is designed for use at ambient temperatures (generally between 10 to 30°C / 50 to 86°F). Exhibits an extremely low vapour pressure of 7 x 10-11Torr at 20°C.