Apiezon greases

Apiezon H
Apiezon H can be applied in a wide range of temperatures, from -10°C to 250°C. It is a relatively stiff grease and actually becomes stiffer as temperature increases, rather than melting. Particularly, it is good to use lo to medium vacuum . Vapour presssure of 1.7 x 10^-9 Torr at 20°C.

Apiezon M
Apiezon M Grease is a silicone-free and halogen-free high vacuum grease with excellent lubrication properties and radiation resistance and is ideally suited to high vacuum applications at ambient temperatures, generally beetween 10 and 30°C. Vapour pressure of 1.7 x 10^-9 Torr at 20°C.

Apiezon N
Apiezon N is widely known and recommended silicone-free and halogen-free cryogenic vacuum grease. It can be used in range of temperatures from -269 to 30°C. Vapour pressure of 6 x 10^-10 Torr at 20°C.

Apiezon T
Apiezon T Grease is a silicone-free medium temperature vacuum grease renowned for its quality and tenacity. As a vacuum grease, it is specifically designed for use in the low to medium vacuum range yet is suitable to be used in the high vacuum range at lower temperatures. Vapour pressure of 4.6 x 10^-9 Torr at 20°C.