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Apiezon® Stopcock/Ground Glass Joint Greases

M-00100 M-00025 H-00025 L-00025 N-00025
Silicone-free greases for lubricating stopcocks and movable joints in vacuum systems such as desiccators, rotary evaporators, vacuum traps, and ground glass joints

Apiezon® H, L, M, and N greases consist of distilled, petroleum-based, complex hydrocarbons. Vapor pressure curves are available for each product over its working temperature range.

Within the Apiezon® range there is a grease designed to suit most applications. H grease has thermal conductivity properties and high temperature resistance, preventing it from melting at high temperatures (stiffens above 40°C). L and M greases are particularly good lubricants, with L grease being recommended for ultra high vacuum systems and M in slightly less critical, high vacuum systems. Both products show resistance to irradiation. Structural properties make L and M greases effective as a stationary phase in gas-liquid chromatography. N grease is specifically for use in cryogenic applications, displays a rubbery consistency, and works well as a cushioning lubricant.

Greases demonstrate “gettering” properties (the ability to extract chemical impurities), and hence are well-suited to electronic applications as they remove organic impurities from a metal surface and do not form insulating films.

Ordering information: Packaged in aluminum tubes to prevent contact with the atmosphere and reduce contamination from dust or water.



Expand All / Collapse All
Description Size Type Supplier No. VWR Catalog Number Unit Price Quantity
Cryogenic High Vacuum Grease, Silicone- and Halogen-Free 25 g (0.88 oz.) - N-00025 10769-160 Each(25g) Retrieving
Pack of 10 (25 g) Retrieving
High Temperature Vacuum Grease, Silicone-Free 25 g (0.88 oz.) - H-00025 10769-152 Each(25g) Retrieving
Pack of 10 (25 g) Retrieving
High Vacuum Grease, Silicone- and Halogen-Free 25 g (0.88 oz.) M M-00025 10769-156 Each(25g) Retrieving
Pack of 10 (25 g) Retrieving
High Vacuum Grease, Silicone- and Halogen-Free 100 g (3.5 oz.) - M-00100 10769-158 Each(100g) Retrieving
Pack of 5 (100 g) Retrieving
Ultra-High Vacuum Grease, Silicone- and Halogen-Free 25 g (0.88 oz.) - L-00025 10769-154 Each(25g) Retrieving
Pack of 10 (25 g) Retrieving
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Type N H M L
Vapor Pressure 6.0 x 10-10 torr @ 20°C 1.7 x 10-9 torr @ 20°C 7.0 x 10-11 torr @ 20°C
Temperature Range –269 to 30°C (–452 to 86°F) –10 to 240°C (14 to 464°F) 10 to 30°C (50 to 86°F)
Melting Point 42–52°C (108–126°F) 40–48°C (104–118°F) 42–52°C (108–126°F)
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