Apiezon N Grease 25g
Apiezon N Grease is the cryogenic Vacuum Grease of choice, it's silicone-free and specially formulated to withstand frequent cycling between cryogenic temperatures as low as -273°C and +30°C.
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Apiezon N Grease is the cryogenic Vacuum Grease of choice, it's silicone-free and halogen-free and specially formulated to show craze-free performance characteristics, withstanding frequent cycling between cryogenic temperatures as low as -273°C and +30°C.
The grease can be relied upon to form and maintain a vacuum seal for long periods, even when subjected to frequent thermal cycling, its unique properties mean N Grease is widely used to create reliable vacuum and pressure-tight seals in, amongst others: electron microscopes, vacuum lines; Schlenk lines; cold traps and liquid helium hoses.
N Grease has a proven track record in improving thermal contact under cryogenic conditions. This is important for the coupling of cooling systems to superconducting magnets, cryostats, temperature sensors or any system that is required to reach cryogenic temperatures as quickly as possible. Low levels of magnetic susceptibility also make it ideal for superconductor manufacturing applications.
Important in low temperature testing of semiconductor chips, laser diodes and crystals, etc., Apiezon N Grease is used to improve thermal contact between the sample boat and cold finger of a cryotstat. This cryogenic thermal contact grease ensures that samples are at the lowest possible temperatures to improve test sensitivities.
Properties:
- Withstands cryogenic temperatures as low as -273°C and +30°C
- Craze-free at cryogenic temperatures
- Abililty to fill the micropores of adjoining surfaces, so improve thermal contact
- Does not suffer from contamination problems associated with silicone based greases such as 'creep' or 'carry over'
- Vapour pressure of 6 x 10-10 Torr at 20°C
- Powerful 'gettering' action
- Low levels of magnetic susceptibility
- Absorbs potentially harmful grease and chemical impurities on metal and glass surfaces
- Easy to clean, use and remove and is soluble in hydrocarbon solvents
- Resists cracking at extremely low temperatures
- Pliable at room temperature and solidifies at Cryogenic temperatures (allows for easy mounting and removal of sensor without causing damage)
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