Apiezon L Ultra High Vacuum Grease - 25g

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. 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). If you are looking for a grease capable of performing at higher temperatures, Apiezon 101 may be more appropriate.

As a halogen-free product Apiezon L Grease has a built-in resistance to irradiation. Other high vacuum greases such as esters, silicones or halogenated paraffins decompose at radiation levels of 0.1 MGy or less. In contrast, L Grease maintains excellent lubrication properties in high radiation applications, despite a small increase in stiffness when irradiated with 4 MeV electrons to 1 MGy. Additional, Apiezon L has strong powers of absorption, particularly for other hydrocarbon molecules due to its complex hydrocarbon structure and very high molecular weight. Consequently, it is frequently used as a stationary phase in gas chromatography.

Properties:

• Recommended for use at ambient temperatures (generally between 10 to 30°C / 50 to 86°F)
• Low vapour pressure of 7 x 10-11 Torr at 20°C
• Does not suffer from contamination problems associated with silicone based greases such as 'creep' or 'carry over'
• Excellent lubrication
• Built-in radiation resistance
• Powerful 'gettering' action, meaning it absorbs potentially harmful grease and chemical impurities on metal and glass surfaces
• Easy to clean and remove as it is soluble in hydrocarbon solvents

Download the MSDS for Apiezon 'L' here