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    5 Products
    About Sealants
    industrial info icon

    Select a sealant that can stretch, contract, and expand enough for your joints.

    Thread Sealants for Oxygen Systems

    Image of Product. Front orientation. Thread Sealants. Thread Sealants for Oxygen Systems, Tube.

    Tube

    Completely free of oil and chemically inert, these sealants are safe to use with wet and dry oxygen systems. They contain PTFE, which provides a slippery surface that keeps threads from binding. These sealants are non-hardening, remaining pliable enough to self-heal and stop leaks before they start, so they’re often used in high-vibration applications that could cause standard thread sealants to fail. Since they have low locking strength, these sealants can be adjusted without tools.
    Tube—The sealant in a tube is a good alternative to thread sealant tape—like tape, it forms PTFE strings between tightened threads, but excess material liquefies, so it won’t clog system components downstream.
    Container
    Max.
    Pressure, psi
    Temp.,
    ° F
    Size, fl.
    oz.
    Type
    For
    Fluids
    For
    Gases
    Min.
    Max.
    Max. Temp.
    for Oxygen, ° F
    For Max.
    Thread Dia.
    Consistency
    Color
    Each
    Low Locking Strength
    3.5Tube10,00010,000-4005001406"PasteWhite4538K1000000
     

    Thread Sealants for Refrigeration Systems

    For use in refrigeration systems and applications exposed to strong chemicals, these sealants have excellent solvent resistance.
    Anaerobic
    Image of Product. Front orientation. Thread Sealants. Thread Sealants for Refrigeration Systems.
    Anaerobic sealants don’t begin to harden until coated surfaces are threaded together, blocking exposure to air. These sealants have medium locking strength, which prevents threads from loosening with vibration and shock. They require a hand tool to unthread.
    Container
    Max.
    Pressure, psi
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden
    Reaches Full
    Strength, hr.
    For
    Fluids
    For
    Gases
    Temp. Range,
    ° F
    For Max.
    Thread Dia.
    Consistency
    For Use With
    Color
    Each
    Medium Locking Strength
     
    Loctite®
    5540.3Bottle10 sec.2410,00010,000-65 to 3003"Thick LiquidR-12 Refrigerant, R-134A Refrigerant, R-22 Refrigerant, R-404A Refrigerant, R-407C Refrigerant, R-502 RefrigerantRed45855K72000000
    5548.4Bottle10 sec.2410,00010,000-65 to 3003"Thick LiquidR-12 Refrigerant, R-134A Refrigerant, R-22 Refrigerant, R-404A Refrigerant, R-407C Refrigerant, R-502 RefrigerantRed45855K73000000
     
    Vibra-Tite
    4461.7Bottle40 min.2410,00010,000-65 to 3003"Thick LiquidR-12 Refrigerant, R-134A Refrigerant, R-22 Refrigerant, R-404A Refrigerant, R-407C Refrigerant, R-502 RefrigerantRed45855K5300000
     
    Nonhardening
    Image of Product. Front orientation. Thread Sealants. Thread Sealants for Refrigeration Systems.
    Non-hardening sealants never fully harden, remaining pliable enough to self-heal and stop leaks before they start, so they’re often used in high-vibration applications that could cause standard thread sealants to fail. Since they have low locking strength, these sealants can be adjusted without tools. These sealants are NSF registered H2 for use in food-processing areas, but they can’t come into contact with food.
    Container
    Max.
    Pressure
    Size, fl.
    oz.
    Type
    For
    Fluids
    For
    Gases
    Temp. Range,
    ° F
    For Max.
    Thread Dia.
    Consistency
    For Use With
    Food Industry
    Std.
    Color
    Pkg.
    Qty.
    Pkg.
    Low Locking Strength
    1BottleNot RatedNot Rated-35 to 4256"Thick LiquidR-12 Refrigerant, R-134A Refrigerant, R-22 Refrigerant, R-404A Refrigerant, R-407C Refrigerant, R-502 RefrigerantNSF Registered H2
    		Clear245855K55000000
     
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