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
    About Structural Adhesives
    industrial info icon

    Compare epoxy, acrylic, and urethane adhesive options. Then learn about adhesive performance measures and best practices to create a strong bond.

    Quick-Set Epoxy Structural Adhesives

    Image of Product. Cartridge. Front orientation. Cartridge.
    Image of Product. Syringe. Front orientation. Syringe.

    Cartridge

    Syringe

    For quick repairs, these epoxies begin to harden in six minutes or less. Epoxies are the strongest and most chemical-resistant structural adhesives. They bond especially well on metal.
    These adhesives come in two parts that need to be mixed. The container size listed is the combined total of the two parts.
    Model Number HY4090—A blend of epoxy and instant-bond adhesive for a balance of strength, cure speed, and temperature resistance.
    Cartridge—To mix and dispense these adhesives, you'll need a mixer nozzle and dispensing gun.
    Thick Liquid—Flow into narrower gaps than gels and pastes, but thick enough to stay put on uneven surfaces.
    Container
    Strength
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, min.
    Reaches Full
    Strength
    Shear,
    psi
    Peel
    Mix
    Ratio
    Consistency
    Viscosity,
    cP
    Temp. Range,
    ° F
    For Joining
    Each
    Loctite®
    HY40901.69Cartridge37 day2,420Not Rated1:1Thick Liquid19,000-65 to 300Composite, Masonry, Metal, Plastic, Rubber, Wood6430A424000000
    HY40901.69Cartridge37 day2,420Not Rated1:1Thick Liquid19,000-65 to 300Composite, Masonry, Metal, Plastic, Rubber, Wood6430A57400000
    HY409013.5Cartridge37 day2,420Not Rated1:1Thick Liquid19,000-65 to 300Composite, Masonry, Metal, Plastic, Rubber, Wood6430A52000000
     
    J-B Weld
     
    PlasticWeld
    501320.85Syringe560 min.2,000Not Rated1:1Thick Liquid9,000-20 to 300Composite, Masonry, Metal, Plastic, Rubber, Wood7605A50000
     
    Accessories for Structural Adhesives
    Each
    Mixer Nozzle for 1.69 fl. oz. Loctite® Cartridges74695A22100000
    Mixer Nozzle for 6.76 fl. oz. and 13.5 fl. oz. Cartridges74695A2110000
    Air-Powered Dispensing Gun for 1.69 fl. oz. Loctite® Cartridges74695A101000000
    Dispensing Gun for 1.69 fl. oz. Cartridges74695A7100000
    Dispensing Gun for 13.5 fl. oz. Cartridges1773A34000000

    Flexible Light-Activated Instant-Bond Adhesives

    Image of Product. Front orientation. Instant-Bond Adhesives. Flexible Light-Activated Instant-Bond Adhesives.
    Take your time to precisely align parts before bonding, and maintain flexibility afterward. These adhesives won't harden until you expose them to a compatible light source. They also remain elastic so the bond can bend without breaking.
    Thin Liquid—Seep into narrow gaps and joints that thick-liquid adhesives can't reach. Use when bonding close-fitting parts.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Container
    Size, fl.
    oz.
    Type
    Begins to
    Harden, sec.
    Reaches Full
    Strength, min.
    Light Intensity Req.
    to Reach Full Strength
    Cure
    Type
    Consistency
    Viscosity,
    cP
    Max. Gap
    Size Filled
    Elongation
    Temp. Range,
    ° F
    For Joining
    Each
    1.69Bottle5305 sec. @ 100 mW/cm²UV LightThin Liquid8500.25"Not Rated45 to 80Ceramic, Composite, Glass, Metal, Plastic, Rubber2454N1000000
     

    Machinable Epoxy Structural Adhesives

    Image of Product. Stick. Front orientation. Stick.

    Stick

    Restore cracked and hole-filled metal workpieces back to usable form with these epoxies. Once cured, you can drill precise holes, tap strong threads, and sand and file the adhesives to tight dimensions. They're steel filled for strength but won't rust.
    Epoxies are the strongest and most chemical-resistant adhesives. They bond especially well on metal.
    These adhesives come in two parts that need to be mixed. The container size listed is the combined total of the two parts.
    Putty—Slice off a chunk and mold it into the shape you need.
    Strength
    Mfr. Model
    No.
    Container
    Type
    Begins to
    Harden, min.
    Reaches Full
    Strength, min.
    Shear,
    psi
    Peel
    Consistency
    Viscosity
    Temp. Range,
    ° F
    For Joining
    Each
    J-B Weld
     
    SteelStik
    8267Stick560900Not RatedPuttyNot Rated-20 to 300Composite, Masonry, Metal, Rubber7605A200000
     

    Slow-Set Epoxy Structural Adhesives

    Image of Product. Syringe. Front orientation. Syringe.

    Syringe

    Take your time positioning parts—these epoxies remain adjustable for at least 90 minutes before setting. Epoxies are the strongest and most chemical-resistant structural adhesives. They bond especially well on metal.
    These adhesives come in two parts that need to be mixed. The container size listed is the combined total of the two parts.
    Paste—Thicker than liquid adhesives but still spreadable—good for filling gaps and covering surfaces.
    Container
    Strength
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, hr.
    Reaches Full
    Strength, hr.
    Shear,
    psi
    Peel
    Mix
    Ratio
    Consistency
    Viscosity,
    cP
    For Joining
    Each
    J-B Weld
     
    Original
    501650.85Syringe4241,800Not Rated1:1Paste150,000Composite, Glass, Masonry, Metal, Plastic, Rubber7605A400000
     

    Epoxy Structural Adhesives

    Image of Product. Stick. Front orientation. Stick.

    Stick

    Epoxies are the strongest and most chemical-resistant structural adhesives. They bond especially well on metal.
    These adhesives come in two parts that need to be mixed. The container size listed is the combined total of the two parts.
    7524A161 is solvent free. If the adhesive hardens in the tube, soften in warm water before dispensing.
    Putty—Slice off a chunk and mold it into the shape you need.
    Strength
    Mfr. Model
    No.
    Container
    Type
    Begins to
    Harden, min.
    Reaches Full
    Strength, hr.
    Shear,
    psi
    Peel
    Consistency
    Viscosity
    Temp. Range,
    ° F
    For Joining
    Each
    J-B Weld
     
    HighHeat
    8297Stick608900Not RatedPuttyNot Rated-20 to 450Composite, Masonry, Metal, Plastic, Rubber7605A3000000
     
    PlasticWeld
    8237Stick2024900Not RatedPuttyNot Rated-20 to 300Composite, Masonry, Plastic, Rubber7605A10000
     

    Waterproof Epoxy Structural Adhesives

    Image of Product. Syringe. Front orientation. Syringe.

    Syringe

    Even when used underwater, these adhesives maintain their strength. Epoxies are the strongest and most chemical-resistant adhesives. They bond especially well on metal.
    These epoxies come in two parts that need to be mixed. The container size listed is the combined total of the two parts.
    Paste—Thicker than liquid adhesives but still spreadable—good for filling gaps and covering surfaces.
    Container
    Strength
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, min.
    Reaches Full
    Strength, hr.
    Shear,
    psi
    Peel
    Mix
    Ratio
    Consistency
    Viscosity,
    cP
    Temp. Range,
    ° F
    For Joining
    Each
    J-B Weld
     
    MarineWeld
    501720.85Syringe511,800Not Rated1:1Paste100,000-20 to 300Composite, Glass, Masonry, Metal, Plastic, Rubber, Wood7605A7000000
     
    back to top