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    5 Products
    About Grease
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    Compare base oils, thickeners, and additives to find the right grease for your application.

    High-Vacuum Seal and O-Ring Grease

    Image of Product. Front orientation. Grease. High-Vacuum Seal and O-Ring Grease, Tube.

    Tube

    A firm consistency and resistance to evaporation make this grease ideal for high-vacuum applications, such as flow meters, vacuum and pressure systems, and laboratory equipment. Apply directly to seals and O-rings to prevent drying and cracking.
    Grease lubricates most efficiently below the maximum temperature.
    Chemours—Chemours Krytox™ 240 grease is long lasting with an indefinite shelf life.
    PTFE Thickener—Grease with PTFE thickener resists aggressive acids, bases, and solvents.
    1 NLGI Grade—NLGI 1 is about the consistency of tomato paste.
    2 NLGI Grade—NLGI 2 is about the consistency of peanut butter.
    3 NLGI Grade—NLGI 3 is about the consistency of vegetable shortening and is comparable to Fomblin grease.
    Nonmelting—Nonmelting grease can be used at temperatures above the maximum temperature briefly, but then will break down more quickly.
    Melting Temperature—Melting temperature is the point at which grease will fail and run out of equipment, leaving it to run dry.
    Container
    Temp.,
    ° F
    NLGI Consistency
    Grade
    Base Oil
    Size, fl.
    oz.
    Type
    Min.
    Max.
    Melting
    Temp.
    Max. Vacuum @ Temp.
    Color
    Mil. Spec.
    Each
    Chemours Krytox™ 240AB Type II—PTFE Thickener
    2
    		Synthetic Oil
    		1/2Tube-40450Not Rated1× 10^-6 Torr @ 100° FWhiteMIL-PRF-2761710195K21000000
    2
    		Synthetic Oil
    		2Tube-40450Not Rated1× 10^-6 Torr @ 100° FWhiteMIL-PRF-2761710195K63000000
     
    Chemours Krytox™ 240AZ Type I—PTFE Thickener
    1
    		Synthetic Oil
    		1/2Tube-70300Nonmelting1× 10^-4 Torr @ 100° FWhiteMIL-PRF-2761710195K1800000
    1
    		Synthetic Oil
    		2Tube-70300Nonmelting1× 10^-4 Torr @ 100° FWhiteMIL-PRF-2761710195K61000000
     
    PTFE Thickener
    3
    		Synthetic Oil
    		3 1/2Tube0480525° F1× 10^-4 Torr @ 72° FWhite—1326K59000000
     
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