Apiezon N Grease 25g H02301011 1 bottle (25g)

It is silicone and halogen free and is widely recognized as the cryogenic vacuum grease of choice. Cryogenic greases exhibit crack-free performance characteristics at low temperatures and are specially formulated to withstand frequent cycling from cryogenic temperatures of -273°C to +30°C. Its ability to fill the pores of adjacent surfaces improves thermal contact. They do not suffer from creep, carryover or other contamination issues associated with silicone-based greases. It has a vapor pressure of 6x10-10 Torr at 20°C. Its powerful "gettering" action absorbs potentially harmful grease and chemical impurities from metal and glass surfaces. It is soluble in hydrocarbon solvents, making it easy to clean and remove. Applications: Lubrication of glass or metal plugs in vacuum systems, sealing of polymer joints in vacuum systems, leak detection, protection of metal contacts in vacuum encapsulated relays, sealing of polished glass/metal surfaces, optical surfaces in vacuum and laser systems (no fogging) Capacity: 25g tube *Not available for sale overseas