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    39 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

    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
     

    Urethane Structural Adhesives

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

    Cartridge

    Syringe

    Urethanes are the most flexible adhesives, so they bond dissimilar materials and damp vibration.
    Some of these adhesives come in two parts that need to be mixed. The container size listed is the combined total of the two parts.
    Cartridge—To mix and dispense these adhesives, you'll need a mixer nozzle and dispensing gun.
    Paste—Thicker than liquid adhesives but still spreadable—good for filling gaps and covering surfaces.
    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
    Temp. Range,
    ° F
    For Joining
    Each
    Loctite®
    557010.1Cartridge307 day400Not Rated—PasteNot Rated-40 to 200Composite, Glass, Masonry, Metal, Plastic, Rubber, Wood, Metal to Composite, Metal to Glass, Metal to Plastic, Metal to Rubber, Plastic to Composite, Plastic to Glass, Plastic to Masonry, Plastic to Rubber, Rubber to Composite, Rubber to Glass, Rubber to Masonry, Wood to Glass6430A798000000
     
    J-B Weld
     
    Plastic Bonder
    501390.85Syringe61 hr.1,000Not Rated1:1Thick Liquid50,000 cP-20 to 250Composite, Masonry, Metal, Plastic, Rubber, Wood, Metal to Composite, Metal to Plastic, Metal to Rubber, Plastic to Composite, Plastic to Masonry, Plastic to Rubber, Rubber to Composite, Rubber to Masonry7605A60000
     

    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
     

    Light-Activated Instant-Bond Adhesives

    Image of Product. Front orientation. Instant-Bond Adhesives. Light-Activated Instant-Bond Adhesives.
    Take your time positioning parts that require precise alignment, such as optical instruments. Instead of gripping immediately, these adhesives only harden when you expose them to a compatible light source.
    Thin Liquid—Seep into narrow gaps and joints that thick-liquid adhesives can't reach. Use when bonding close-fitting parts.
    ISO 10993—Comply with biocompatibility standards for medical-grade applications.
    Container
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, sec.
    Reaches Full
    Strength, hr.
    Light Intensity Req.
    to Reach Full Strength
    Cure Type
    Consistency
    Viscosity,
    cP
    Max. Gap
    Size Filled
    Temp. Range,
    ° F
    Specs.
    Met
    For Joining
    Each
    Loctite®
    43111Bottle52410 sec. @ 30 mW/cm²UV Light, Visible LightThin Liquid1,0500.008"-65 to 200ISO 10993Ceramic, Composite, Glass, Metal, Plastic, Rubber, Wood1700A5000000
     
    Adhesive Activators
    Each
    Activator for Loctite® 352 (1.8-oz. Bottle)7560A56000000
    Activator for Loctite® 352 (4.5-oz. Aerosol Can)7560A5700000

    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
     

    Flexible Instant-Bond Adhesives

    Image of ProductInUse. Front orientation. Instant-Bond Adhesives. Flexible Instant-Bond Adhesives.
    Create bonds that can bend without breaking. These adhesives remain elastic even after hardening.
    Apply an accelerator first to reach a full-strength bond faster.
    Thin Liquid—Seep into narrow gaps and joints that thick-liquid adhesives can't reach. Use when bonding close-fitting parts.
    ISO 10993—Comply with biocompatibility standards for medical-grade applications.
    Material Certificate Icon
    Certificates with a traceable lot number and product shelf life are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Container
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, sec.
    Reaches Full
    Strength, hr.
    Consistency
    Viscosity,
    cP
    Max. Gap
    Size Filled
    Elongation
    Temp. Range,
    ° F
    Specs.
    Met
    For Joining
    Each
    Loctite®
    49020.7Bottle1024Thin Liquid2000.004"155%-65 to 180ISO 10993Ceramic, Composite, Glass, Metal, Plastic, Rubber, Wood74795A397000000
     

    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
     

    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
     

    Glue-on-a-Roll

    Image of Product. Front orientation. Mounting Adhesives. Glue-on-a-Roll.
    Apply this glue-like tape for a no-mess alternative to liquid adhesives, hot melts, and staples. Also known as adhesive transfer tape, these rolls have a thin film of pressure-sensitive glue on a peel-away liner. They are thinner and more conformable than tape with adhesive on both sides.
    Model Number 468MP—467MP and 468MP resist solvents and UV rays.
    Temp.,
    ° F
    Mfr. Model
    No.
    Wd.
    Lg.,
    yd.
    Thk.
    Min.
    Max.
    Color
    For Joining
    Each
    3M Glue-on-a-Roll
    468MP1/2"600.005"-40300ClearCardboard, Ceramic, Composite, Foam, Glass, Metal, Plastic, Wood7628A32000000
    468MP1"600.005"-40300ClearCardboard, Ceramic, Composite, Foam, Glass, Metal, Plastic, Wood7628A3300000
     

    Acrylic Structural Adhesives

    Image of Product. Cartridge. Front orientation. Cartridge.

    Cartridge

    Acrylics bond with the widest range of materials of any adhesive. They adhere to plastic especially well, requiring little surface preparation.
    These adhesives come in two parts that need to be mixed. The container size listed is the combined total of the two parts.
    Cartridge—To mix and dispense these adhesives, you'll need a mixer nozzle and dispensing gun.
    Paste—Thicker than liquid adhesives but still spreadable—good for filling gaps and covering surfaces.
    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, hr.
    Shear,
    psi
    Peel, lbf/in.
    wd.
    Mix
    Ratio
    Consistency
    Viscosity,
    cP
    Temp. Range,
    ° F
    For Joining
    Each
    Loctite®
    H45001.69Cartridge15723,1005810:1Thick Liquid14,380-40 to 210Metal, Plastic6430A67000000
    H80001.69Cartridge30242,8004510:1Paste190,000-65 to 250Composite, Metal, Plastic6430A4600000
     
    Other Structural Adhesives
    —1.69Cartridge5243,20071:1Thick Liquid64,000-40 to 250Composite, Masonry, Metal, Plastic, Rubber, Metal to Composite, Metal to Plastic, Metal to Rubber, Plastic to Composite, Plastic to Masonry, Rubber to Composite, Rubber to Masonry2455N400000
    —13 1/2Cartridge5243,20071:1Thick Liquid64,000-40 to 250Composite, Masonry, Metal, Plastic, Rubber, Metal to Composite, Metal to Plastic, Metal to Rubber, Plastic to Composite, Plastic to Masonry, Rubber to Composite, Rubber to Masonry2455N300000
     
    Accessories for Structural Adhesives
    Each
    Mixer Nozzle for 6.76 fl. oz. and 13.5 fl. oz. Loctite® Cartridges7451A6100000
    Mixer Nozzle for 1.69 fl. oz. Loctite® Cartridges74695A870000
    Dispensing Gun for 1.69 fl. oz. Cartridges74695A7100000
    Dispensing Gun for 13.5 fl. oz. Cartridges7451A52000000
    Dispensing Gun for 1.69 fl. oz. Loctite® Cartridges74695A8600000
    Plunger for 1.69-oz. Cartridges (10:1 Mix Ratio)74695A8900000

    No-Mix Acrylic Structural Adhesives

    Image of Product. Bottle. Front orientation. Bottle. No Mix.
    Image of Product. Syringe. Front orientation. Syringe. No Mix.
    Image of Product. Tube. Front orientation. Tube. No Mix.

    Bottle

    Syringe

    Tube

    No need to mix these acrylics—apply adhesive to one surface and activator to the other, then join. Acrylics bond with the widest range of materials of any adhesive. They adhere to plastic especially well, requiring little surface preparation.
    Model Number 325—Form flexible bonds and withstand rapid changes in temperature.
    Paste—Thicker than liquid adhesives but still spreadable—good for filling gaps and covering surfaces.
    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
    Reaches Full
    Strength, hr.
    Shear,
    psi
    Peel
    Consistency
    Viscosity,
    cP
    Temp. Range,
    ° F
    Req. Loctite®
    Activator No.
    For Joining
    Each
    Loctite®
    3241.69Bottle5 min.242,70013 lbf/in. wd.Thick Liquid17,000-65 to 3507075, 7387Glass, Metal, Plastic, Rubber, Metal to Glass, Metal to Plastic, Metal to Rubber, Plastic to Glass, Plastic to Rubber, Rubber to Glass7614A11000000
    3251.69Bottle5 min.241,600Not RatedThick Liquid20,000-65 to 3007075, 7387Glass, Metal, Plastic, Rubber7614A11100000
    3310.9Syringe20 sec.243,10019 lbf/in. wd.Thick Liquid20,000-40 to 3507387Glass, Metal, Plastic, Rubber7614A3600000
    33233Bottle3 min.243,00020 lbf/in. wd.Paste100,000-65 to 4007387Glass, Metal, Plastic, Rubber1700A29000000
    3340.8Syringe90 sec.242,80025 lbf/in. wd.Thick Liquid80,000-65 to 3507380, 7387Glass, Metal, Plastic, Rubber1700A21100000
    3921.69Tube60 sec.242,500Not RatedThick Liquid6,500-65 to 2507380, 7387Glass, Metal, Plastic, Rubber1700A10200000
    39233Bottle60 sec.242,500Not RatedThick Liquid6,500-65 to 2507380, 7387Glass, Metal, Plastic, Rubber1700A1000000
     
    Adhesive Activators
    Each
    Loctite® 7387 (1.75 fl. oz. Brush-Top Bottle)7560A56000000
    Loctite® 7387 (4.5 oz. Aerosol Can)7560A5700000
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