McMaster-Carr logo
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    15 Products

    High-Temperature Thread Sealants

    Image of Product. Front orientation. Thread Sealants. High-Temperature Thread Sealants.
    These sealants have high locking strength, so they work in demanding applications, such as securing mounting studs in motor housings. They also withstand applications with large temperature swings.
    Heat—Heat cure sealant requires heat of at least 212° F to harden. Above 300° F, the sealant hardens in about 15 minutes. For temperatures below 300° F, it may take up to 4 hours to harden. It requires both heat and a hand tool to unthread.
    1,500° F Maximum Temperature—1500° F max. temp. sealants are for use on cement-lined pipe joints prior to welding. The heat from the welding torch helps them begin to harden.
    Container
    Max.
    Pressure, psi
    Temp.,
    ° F
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, sec.
    Reaches Full
    Strength, hr.
    For
    Fluids
    For
    Gases
    Min.
    Max.
    For Max.
    Thread Dia.
    Consistency
    Mil. Spec.
    For Use On
    Color
    Each
    Medium Locking Strength
     
    Heat Cure Loctite®
    554016Can10122,9002,900-401,3004"Thin LiquidMIL-S-15204Pipe, Aluminum, Brass, Bronze, Cast Iron, Concrete, Iron, Metal, Stainless Steel, Steel, Tin, Titanium, Galvanized Iron, Galvanized SteelBrown1959A1010000000
    555032Can1025,0005,000-401,5006"PasteMIL-S-15204Aluminum, Brass, Bronze, Cast Iron, Concrete, Iron, Metal, Stainless Steel, Steel, Tin, Titanium, Galvanized Iron, Galvanized SteelBrown1959A102000000
     

    High-Density Thread Sealant Tape

    Image of Product. Front orientation. Thread Sealants. High-Density Thread Sealant Tape.
    This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.
    Max.
    Pressure, psi
    Each
    Wd.
    Lg.,
    yd.
    Density,
    g/cm³
    For
    Fluids
    For
    Gases
    Temp. Range,
    ° F
    For Max.
    Thread Dia.
    Food Industry Std.
    Certification
    Mil. Spec.
    Color
    1-11
    12-Up
    PTFE
     
    0.0035" Thick
    1/4"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		Mil. Spec.
    UL Listed    		Fed. Spec. A-A-58092 Type II
    MIL-T-27730    		White6802K8100000000000
    3/8"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		Mil. Spec.
    UL Listed    		Fed. Spec. A-A-58092 Type II
    MIL-T-27730    		White6802K820000000000
    1/2"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		Mil. Spec.
    UL Listed    		Fed. Spec. A-A-58092 Type II
    MIL-T-27730    		White6802K830000000000
    3/4"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		Mil. Spec.
    UL Listed    		Fed. Spec. A-A-58092 Type II
    MIL-T-27730    		White6802K840000000000
    1"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		Mil. Spec.
    UL Listed    		Fed. Spec. A-A-58092 Type II
    MIL-T-27730    		White6802K850000000000
    1 1/2"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		Mil. Spec.
    UL Listed    		Fed. Spec. A-A-58092 Type II
    MIL-T-27730    		White6802K860000000000
    2"141.910,00010,800-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		Mil. Spec.
    UL Listed    		Fed. Spec. A-A-58092 Type II
    MIL-T-27730    		White6802K870000000000
     
    Nickel-Filled PTFE
     
    0.0040" Thick
    1/4"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		UL Listed
    		—White6802K880000000000
    3/8"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		UL Listed
    		—White6802K890000000000
    1/2"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		UL Listed
    		—White6802K910000000000
    3/4"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		UL Listed
    		—White6802K920000000000
    1"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		UL Listed
    		—White6802K930000000000
    2"141.910,50011,500-450 to 5506"FDA Compliant 21 CFR 175.105
    FDA Compliant 21 CFR 177.2600    		UL Listed
    		—White6802K950000000000
     
    back to top