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    36 Products

    Urethane Potting Compounds

    Encase electronic assemblies in a layer of urethane for protection from dust, moisture, chemicals, mechanical shock, and vibration. Urethanes withstand a wide range of temperatures and are the best choice for cold-temperature applications. They have excellent flexibility, good chemical and moisture resistance, and provide good electrical insulation.
    Cartridge
    Image of Product. Front orientation. Potting Compounds. Urethane Potting Compounds, Cartridge.
    Cartridge potting compounds can be applied precisely through the included mixer nozzle. You’ll need a dispensing gun (sold separately).
    Model Number US2350—US2350™ also require a 4:1 plunger (sold separately) to dispense.
    Dry Time
    Mfr. Model
    No.
    Container
    Size, fl. oz.
    Consistency
    Touch,
    min.
    Overall,
    hr.
    Dielectric Strength,
    V/mil
    Thermal Conductivity,
    W/(m⋅°C)
    Temp. Range,
    ° F
    For Use On
    Color
    Each
    Loctite® Potting Compounds—Medium Hard
    US23501.69Thick Liquid90249500.51-40 to 250Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Polycarbonate, Polyurethane Rubber, Ceramic, Glass, ABS, Garolite, Polyimide, PVCBlack7369A42000000
     
    Loctite® Potting Compounds—Soft
    US26516.76Thin Liquid10161,050Not Rated-85 to 250Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Polycarbonate, Polyurethane Rubber, Ceramic, Glass, ABS, Garolite, Polyimide, PVCAmber7369A4600000
     
    Accessories for Potting Compounds
    Bottle
    Image of Product. Front orientation. Potting Compounds. Urethane Potting Compounds, Bottle.
    Bottle potting compounds are easier to apply in high volumes than cartridge potting compounds. Mix the compounds together and pour them over components inside potting boxes and other containers. If mixing introduces any air bubbles, put the mixture in a vacuum chamber.
    Cannot Be Sold To—Compounds that cannot be sold to the listed areas are restricted by product labeling requirements.
    Dry Time
    Container
    Size, fl. oz.
    Consistency
    Touch,
    min.
    Overall,
    hr.
    Dielectric Strength,
    V/mil
    Thermal Conductivity,
    W/(m⋅°C)
    Temp. Range,
    ° F
    For Use On
    Color
    Cannot Be
    Sold To
    Each
    Potting Compounds—Extra Hard
    12.6Thin Liquid45244000.3-55 to 245Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Polycarbonate, Polyurethane Rubber, Ceramic, Glass, ABS, Garolite, Polyimide, PVCBlackCanada7369A111000000
     

    Urethane Structural Adhesives

    Image of Product. Cartridge. Front orientation. Cartridge.
    Image of Product. Single-Use Packet. Front orientation. Single-Use Packet.

    Cartridge

    Single-Use Packet

    Image of Product. Syringe. Front orientation. Syringe.

    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.
    Model Number UK U-05FL and Model Number UK U-09FL—Will not yellow.
    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, lbf/in.
    wd.
    Mix
    Ratio
    Consistency
    Viscosity,
    cP
    Temp. Range,
    ° F
    Specifications
    Met
    For Joining
    Pkg.
    Qty.
    Pkg.
    3M
     
    Scotch-Weld
    DP605NS1.64Cartridge548 hr.660331:1Paste150,000-65 to 250Composite, Metal, Plastic, Wood, Metal to Composite, Metal to Plastic, Plastic to Composite17467A27000000
     
    Loctite®
    557010.1Cartridge307 day400Not RatedPasteNot 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 Glass16430A79800000
    UK U-05FL1.69Cartridge524 hr.930Not Rated1:2Paste100,000-65 to 250Glass, Metal, Plastic, Wood, Metal to Glass, Metal to Plastic, Plastic to Glass, Wood to Glass16430A2100000
    UK U-09FL1.69Cartridge1024 hr.1,460Not Rated1:1Thick Liquid5,000-65 to 250Metal, Plastic, Wood, Metal to Plastic16430A3200000
    UK M-11FL1.69Cartridge1024 hr.1,850Not Rated1:1Thick Liquid3,800-65 to 250ISO 10993Glass, Metal, Plastic, Metal to Glass, Metal to Plastic, Plastic to Glass17370A2200000
     
    J-B Weld
     
    Plastic Bonder
    501390.85Syringe61 hr.1,000Not Rated1:1Thick Liquid50,000-20 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 Masonry17605A60000
     
    Lord
    7150A/B1.69Cartridge524 hr.1,400402:1Thick Liquid38,830-30 to 240Composite, Glass, Metal, Plastic, Rubber, Wood, Metal to Glass, Metal to Plastic, Metal to Rubber, Plastic to Glass, Plastic to Rubber, Rubber to Glass, Wood to Glass166195A1700000
    7542A/B1.69Cartridge424 hr.1,800501:1Thick Liquid6,750-30 to 240Composite, Glass, Metal, Plastic, Rubber, Wood, Metal to Glass, Metal to Plastic, Metal to Rubber, Plastic to Glass, Plastic to Rubber, Rubber to Glass, Wood to Glass166195A2400000
    7550A/C1.69Cartridge372 hr.1,500301:1Thick Liquid6,080-30 to 240Glass, Plastic, Rubber, Wood, Metal to Glass, Metal to Plastic, Plastic to Glass, Plastic to Rubber, Wood to Glass166195A2500000
     
    Other Structural Adhesives
    Single-Use Packet818 hr.400Not Rated1:1Thick Liquid4,000-40 to 150Composite, Glass, Metal, Plastic, Rubber, Metal to Composite, Metal to Glass, Metal to Plastic, Metal to Rubber, Plastic to Composite, Plastic to Glass, Plastic to Rubber, Rubber to Composite, Rubber to Glass107493A4100000
     
    Accessories for Structural Adhesives

    Flexible Epoxy Potting Compounds

    Image of Product. Front orientation. Potting Compounds. Flexible Epoxy Potting Compounds.
    Combine the flexibility of silicone with the durability of standard epoxy—these compounds are great for protecting sensitive electronics that need to flex or expand and contract. Because they’re an epoxy, they still have excellent moisture, chemical, and abrasion resistance. They withstand a wide range of temperatures, and this formulation won’t crack or split as components heat up and cool down. These compounds are excellent electrical insulators, and they’ll shield your components from moisture and dust. You can also use them as an adhesive since they’re also tacky.
    They come in a cartridge, so you can apply them precisely. To dispense, they require a mixer nozzle and gun (both sold separately).
    Dry
    Time, hr.
    Container
    Size, fl. oz.
    Consistency
    Touch
    Overall
    Mixer Nozzle
    Included
    Mix
    Ratio
    Dielectric
    Strength
    Thermal
    Conductivity
    Temp. Range,
    ° F
    For Use On
    Each
    Cartridge Potting Compounds—Soft
    1.69Thick Liquid2472No1:1Not RatedNot Rated-85 to 275Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composite, Fiberglass, Ceramic, Glass5906N11000000
     
    Accessories for Potting Compounds

    Urethane Potting Compounds for Harsh Environments

    Image of Product. Front orientation. Potting Compounds. Urethane Potting Compounds for Harsh Environments.
    From shore to sea floor, these potting compounds are formulated for permanent submersion in water—even salt water. Use them to protect circuits and splices in pumps, underwater lighting, and other underwater electronics from corrosion and chemicals. Made of urethane, they withstand a wide range of temperatures, especially cold underwater conditions. They provide good electrical insulation and have excellent flexibility. Since they’re more flexible than epoxy compounds, they’re often used to protect against vibration and impact.
    Mix the two parts of these compounds together and pour them over components inside a potting box or other container. If mixing causes air bubbles, put the mixture in a vacuum chamber to remove them.
    Dry Time
    Container
    Size, fl. oz.
    Consistency
    Touch,
    min.
    Overall,
    hr.
    Mix
    Ratio
    Dielectric Strength,
    V/mil
    Thermal Conductivity,
    W/(m⋅°C)
    Temp. Range,
    ° F
    Environment
    For Use On
    Color
    Clarity
    Cannot Be
    Sold To
    Each
    Bottle Potting Compounds—Hard
    12.6Thin Liquid10242:13700.3-55 to 245Corrosive, Harsh, SubmersibleAluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Polycarbonate, Polyurethane Rubber, Ceramic, Glass, ABS, Garolite, Polyimide, PVCBlackOpaqueCanada6094N11000000
     

    Gap-Filling Instant-Bond Adhesives

    Image of Product. Syringe. Front orientation. Instant-Bond Adhesives. Gap-Filling Instant-Bond Adhesives.

    Syringe

    These thick gels fill the largest gaps of any of our instant-bond adhesives. They also stay in place without dripping, even on vertical surfaces.
    Attach the mixer nozzle to the syringe to combine and dispense the adhesive.
    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
    Max. Gap
    Size Filled
    Temp. Range,
    ° F
    Mix
    Ratio
    Includes
    For Joining
    Each
    Loctite®
    30920.3Syringe1524GelNot Rated0.2"0 to 17010:1Three Mixer NozzlesMetal, Plastic, Rubber, Wood7530A12000000
     

    High-Strength Self-Leveling Concrete Joint Sealants

    Image of Product. Front orientation. Sealants. High-Strength Self-Leveling Concrete Joint Sealants.
    Seal concrete joints in high-traffic locations—these sealants stand up to heavy wear and tear, such as steel wheel traffic. Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.
    Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. These sealants are best suited to joints between similar materials that aren't exposed to wide temperature fluctuation. For high-wear applications, choose a harder sealant for the most abrasion resistance.
    Container
    For Max.
    Crack
    Mfr. Model
    No.
    Size, fl.
    oz.
    Type
    Begins to
    Harden, min.
    Reaches Full
    Strength, min.
    Mix
    Ratio
    Elongation
    Joint Compression/Expansion
    Tolerance
    Tensile Strength,
    psi
    Hardness Rating
    Wd.
    Dp.
    Application
    Temp. Range, ° F
    Temp. Range,
    ° F
    For Joining
    Color
    Each
    Loctite® Polyurethane Rubber
    PC 62318.6Cartridge3901:182%-10% to 10%1,200Hard (Durometer 75A)3/4"2 1/4"-40 to 105-40 to 120Asphalt
    Composite
    Glass
    Masonry
    Metal
    Plastic
    Rubber
    Wood
    Gray1660N14000000
     

    Epoxy Potting Compounds for Harsh Environments

    Image of Product. Front orientation. Potting Compounds. Epoxy Potting Compounds for Harsh Environments.
    Tough enough to be permanently submersed in seawater, these compounds protect sensitive electronics, such as circuit boards, semiconductors, and sensors in harsh environments. They resist moisture, salt, and chemicals, so you can use them in corrosive oil, marine, and mining applications. These compounds can also be used within autoclaves. Because they are epoxies, they are rigid, resist wear, and create excellent electrical insulation. They withstand a wide range of temperatures, and this formulation won’t crack or split as components heat up and cool down.
    They come in a cartridge, so you can apply them precisely. To dispense, they require a mixer nozzle and gun (both sold separately).
    Dry
    Time, hr.
    Container
    Size, fl. oz.
    Consistency
    Touch
    Overall
    Mixer Nozzle
    Included
    Mix
    Ratio
    Dielectric Strength,
    V/mil
    Thermal
    Conductivity
    Temp. Range,
    ° F
    Environment
    For Use On
    Autoclavable
    Each
    Cartridge Potting Compounds—Extra Hard
    1.69Thick Liquid1224No2:1500Not Rated-50 to 350Corrosive, Harsh, SubmersibleBrass, Bronze, Cast Iron, Copper, Steel, Stainless Steel, Titanium, Polycarbonate, Polyurethane Rubber, Glass, ABS, CPVC, HDPE, Nylon, PEEK, Polyethylene, Polyimide, Polypropylene, Polystyrene, PVC, PVDF, UHMW PolyethyleneYes5872N11000000
     
    Accessories for Potting Compounds

    Optically Clear Epoxy Structural Adhesives

    Image of Product. Cartridge. Front orientation. Cartridge.

    Cartridge

    For invisible bond lines, these adhesives dry clear. Epoxies are the strongest and most chemical-resistant structural adhesives. They bond especially well on metal. Choose an epoxy that hardens quickly for fast repairs, or one that hardens slowly to allow more time for positioning.
    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.
    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
    Loctite®
    6081.69Cartridge5242,980Not Rated1:1Paste100,000-65 to 130Metal, Plastic, Rubber6430A44000000
     
    Accessories for Structural Adhesives

    High-Strength Urethane Structural Adhesives

    Image of Product. Cartridge. Front orientation. Cartridge.
    Image of Product. Single-Use Packet. Front orientation. Single-Use Packet.

    Cartridge

    Single-Use Packet

    Image of Product. Syringe. Front orientation. Syringe.

    Syringe

    With the highest shear strength, these form the strongest bonds of our urethane adhesives.
    Urethanes are the most flexible adhesives, so they bond dissimilar materials and dampen vibration.
    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.
    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
    Shear,
    psi
    Peel, lbf/in.
    wd.
    Mix
    Ratio
    Consistency
    Viscosity,
    cP
    Temp. Range,
    ° F
    For Joining
    Pkg.
    Qty.
    Pkg.
    3M
     
    Scotch-Weld
    DP620NS1.64Cartridge20 min.48 hr.1,700301:1Thick Liquid4,360-60 to 250Composite, Metal, Plastic, Rubber, Wood, Metal to Composite, Metal to Plastic, Metal to Rubber, Plastic to Composite, Plastic to Rubber, Rubber to Composite17467A218000000
    DP6401.64Cartridge40 min.7 day1,960641:1Thick Liquid30,000-65 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 Masonry17467A7800000
     
    Other Structural Adhesives
    1.65Syringe60 sec.24 hr.1,950651:1Thick Liquid30,000-45 to 250Composite, Glass, Metal, Plastic, Rubber, Metal to Composite, Metal to Glass, Metal to Plastic, Metal to Rubber, Plastic to Composite, Plastic to Glass, Plastic to Rubber, Rubber to Composite, Rubber to Glass17448A2100000
    1.65Syringe4 min.24 hr.2,050651:1Thick Liquid30,000-45 to 250Composite, Glass, Metal, Plastic, Rubber, Metal to Composite, Metal to Glass, Metal to Plastic, Metal to Rubber, Plastic to Composite, Plastic to Glass, Plastic to Rubber, Rubber to Composite, Rubber to Glass17448A2200000
    Single-Use Packet3 min.24 hr.1,715621.28:1Thick Liquid10,000-40 to 170Composite, Glass, Metal, Plastic, Rubber, Metal to Composite, Metal to Glass, Metal to Plastic, Metal to Rubber, Plastic to Composite, Plastic to Glass, Plastic to Rubber, Rubber to Composite, Rubber to Glass107493A2100000
    Single-Use Packet5 min.24 hr.2,280101:1.1Thick Liquid11,000-40 to 200Composite, Metal, Plastic, Rubber, Metal to Composite, Metal to Plastic, Metal to Rubber, Plastic to Composite, Plastic to Rubber, Rubber to Composite107493A3400000
     
    Accessories for Structural Adhesives
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