Apiezon N Cryogenic 4K High Vacuum Grease 5x10-9 Torr at 20°, Silicone & Halogene Free, 25 G Tube

When it comes to low temperature applications, nothing comes close in performance to Apiezon N Grease. The product retains most of its important properties all the way down to -269°C/-452°F/4°K. But this is not all. This innovative new lubricant solution to those low temperature challenges can also be cycled from these low temperatures up to room temperature and then back down without showing visible signs of cracking. And in addition, this grease is completely free of any silicones or halogens.

Apiezon N grease has a special proprietary additive that reduces (or eliminates) cracking and crazing when the grease is cooled (or even quenched) to the cryogenic temperatures already mentioned above. This helps ensure that as a thermal contact medium, maximum contact between the surfaces is conferred by the grease, ensuring maximum thermal conductance. All these advantages are additional of course, to the primary purpose of the product, that is, to ensure a leak free seal. Extensive additional technical information is available including vapor pressure vs. temperature data. Apiezon N is also used as an electrical contact grease (lubricant). These Apiezon N Cryogenic High Vacuum Grease are packaged in a 25 gram tube and are for use with vacuum O-rings and joints used in cryogenic vacuum applications.