About Sealant Flexibility
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About Structural Adhesives
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About Paint and Protective Coatings
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Urethane Structural Adhesives
Urethane adhesives are the most flexible, so they bond dissimilar materials and damp vibration.
The size listed is the combined total of the two parts. Use 1.64 fl. oz. and 1.69 fl. oz. cartridges with a dispensing gun and mixer nozzle to simultaneously mix and dispense adhesives. Dispense adhesives in 10.1 fl. oz. cartridges with a standard caulk gun.
DP604NS and DP605NS stay flexible at low temperatures.
U-05FL, U-09FL, and U-09LV won't yellow.
5570 is also known as silane modified polymer.

Container | Strength | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel, lbs./in. wd. | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
DP605NS | 1.64 | Cartridge | 5 min. | 48 hrs. | 660 | 33 | 1:1 | Paste (150,000 cP) | -65° to 250° | Off-White | Metal, Metal to Plastic, Metal to Composites, Plastic, Plastic to Composites, Composites, Wood | 0000000 | 000000 |

Container | Strength | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
5570 | 10.1 | Cartridge | 30 min. | 7 days | 400 | Not Rated | Paste (Not Rated) | -40° to 200° | White | Metal, Metal to Plastic, Metal to Rubber, Metal to Composites, Metal to Glass, Plastic, Plastic to Rubber, Plastic to Composites, Plastic to Glass, Plastic to Masonry, Rubber, Rubber to Composites, Rubber to Glass, Rubber to Masonry, Composites, Glass, Masonry, Wood, Wood to Glass | 00000000 | 000000 |

Container | Strength | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
UK M-11FL | 1.69 | Cartridge | 10 min. | 24 hrs. | 1,850 | Not Rated | 1:1 | Thick Liquid (3,800 cP) | -65° to 250° | Clear | Metal, Metal to Plastic, Metal to Glass, Plastic, Plastic to Glass, Glass | 0000000 | 000000 |
UK U-05FL | 1.69 | Cartridge | 5 min. | 24 hrs. | 930 | Not Rated | 1:2 | Paste (100,000 cP) | -65° to 250° | Off-White | Metal, Metal to Plastic, Metal to Glass, Plastic, Plastic to Glass, Glass, Wood, Wood to Glass | 0000000 | 00000 |
UK U-09FL | 1.69 | Cartridge | 10 min. | 24 hrs. | 1,460 | Not Rated | 1:1 | Thick Liquid (5,000 cP) | -65° to 250° | Clear | Metal, Metal to Plastic, Plastic, Wood | 0000000 | 00000 |

Container | Strength | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel, lbs./in. wd. | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
7150A/B | 1.69 | Cartridge | 5 min. | 24 hrs. | 1,400 | 40 | 2:1 | Thick Liquid (38,830 cP) | -30° to 240° | Gray | Metal, Metal to Plastic, Metal to Rubber, Metal to Glass, Plastic, Plastic to Rubber, Plastic to Glass, Rubber, Rubber to Glass, Composites, Glass, Wood, Wood to Glass | 00000000 | 000000 |
7542A/B | 1.69 | Cartridge | 4 min. | 24 hrs. | 1,800 | 50 | 1:1 | Thick Liquid (6,750 cP) | -30° to 240° | Brown | Metal, Metal to Plastic, Metal to Rubber, Metal to Glass, Plastic, Plastic to Rubber, Plastic to Glass, Rubber, Rubber to Glass, Composites, Glass, Wood, Wood to Glass | 00000000 | 00000 |
7550A/C | 1.69 | Cartridge | 3 min. | 72 hrs. | 1,500 | 30 | 1:1 | Thick Liquid (6,080 cP) | -30° to 240° | Clear | Metal to Plastic, Metal to Glass, Plastic, Plastic to Rubber, Plastic to Glass, Rubber, Glass, Wood, Wood to Glass | 00000000 | 00000 |

Mfr. Model | Container | Strength | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Name | No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
Plastic Bonder | 50139 | 0.85 | Syringe | 15 min. | 30 min. | 1,000 | Not Rated | 1:1 | Thick Liquid (50,000 cP) | -20° to 250° | Black | Metal, Metal to Plastic, Metal to Rubber, Metal to Composites, Plastic, Plastic to Rubber, Plastic to Composites, Plastic to Masonry, Rubber, Rubber to Composites, Rubber to Masonry, Composites, Masonry, Wood | 000000 | 00000 |

Container | Strength | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Net Weight, oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Pkg. Qty. | Pkg. | |
0.1 oz. | One-Time-Use Packet | 8 min. | 18 hrs. | 400 | Not Rated | 1:1 | Thick Liquid (4,000 cP) | -40° to 150° | Clear | Metal, Metal to Plastic, Metal to Rubber, Metal to Composites, Metal to Glass, Plastic, Plastic to Rubber, Plastic to Composites, Plastic to Glass, Rubber, Rubber to Composites, Rubber to Glass, Composites, Glass | 10 | 0000000 | 000000 |
(Web) For Cartridge Size | Each | ||
Mixer Nozzle for 1.64 fl. oz. 3M Cartridges (Step Tip) | __ | 0000000 | 00000 |
Mixer Nozzle for 1.64 fl. oz. 3M Cartridges (Taper Tip) | __ | 0000000 | 0000 |
Mixer Nozzle for 1.69 fl. oz. Cartridges | 1.58 oz. | 00000000 | 0000 |
Replacement Plunger for 1.64 fl. oz. 3M Cartridges | __ | 0000000 | 00000 |
Dispensing Gun for 1.64 fl. oz. 3M Cartridges | __ | 0000000 | 000000 |
Air-Powered Dispensing Gun for 1.64 fl. oz. 3M Cartridges | __ | 0000000 | 000000 |
Air-Powered Dispensing Gun for 1.69 fl. oz. Loctite® Cartridges | __ | 000000000 | 000000 |
Dispensing Gun for 1.69 fl. oz. Cartridges | 1.58 oz. | 00000000 | 00000 |
High-Strength Urethane Structural Adhesives
With high shear strength and peel strength, these form the strongest bonds of our urethane adhesives. Urethanes are the most flexible adhesives, so they bond dissimilar materials and damp vibration.
The size listed is the combined total of the two parts. Use cartridges with a dispensing gun and mixer nozzle to simultaneously mix and dispense adhesives.

Container | Strength | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel, lbs./in. wd. | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
DP620NS | 1.64 | Cartridge | 20 min. | 48 hrs. | 1,700 | 30 | 1:1 | Thick Liquid (4,360 cP) | -60° to 250° | Black | Metal, Metal to Plastic, Metal to Rubber, Metal to Composites, Plastic, Plastic to Rubber, Plastic to Composites, Rubber, Rubber to Composites, Composites, Wood | 00000000 | 000000 |
DP640 | 1.64 | Cartridge | 40 min. | 7 days | 1,960 | 64 | 1:1 | Thick Liquid (30,000 cP) | -65° to 250° | Brown | Metal, Metal to Plastic, Metal to Rubber, Metal to Composites, Plastic, Plastic to Rubber, Plastic to Composites, Plastic to Masonry, Rubber, Rubber to Composites, Rubber to Masonry, Composites, Masonry, Wood | 0000000 | 00000 |

Container | Strength | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel, lbs./in. wd. | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
1.65 | Syringe | 4 min. | 24 hrs. | 2,050 | 65 | 1:1 | Thick Liquid (30,000 cP) | -45° to 250° | Black | Metal, Metal to Plastic, Metal to Rubber, Metal to Composites, Metal to Glass, Plastic, Plastic to Rubber, Plastic to Composites, Plastic to Glass, Rubber, Rubber to Composites, Rubber to Glass, Composites, Glass | 0000000 | 000000 |
1.65 | Syringe | 60 sec. | 24 hrs. | 1,950 | 65 | 1:1 | Thick Liquid (30,000 cP) | -45° to 250° | Black | Metal, Metal to Plastic, Metal to Rubber, Metal to Composites, Metal to Glass, Plastic, Plastic to Rubber, Plastic to Composites, Plastic to Glass, Rubber, Rubber to Composites, Rubber to Glass, Composites, Glass | 0000000 | 00000 |

Container | Strength | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Net Weight, oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel, lbs./in. wd. | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Pkg. Qty. | Pkg. | |
0.1 | One-Time-Use Packet | 3 min. | 24 hrs. | 1,715 | 62 | 1.28:1 | Thick Liquid (10,000 cP) | -40° to 170° | Beige | Metal, Metal to Plastic, Metal to Rubber, Metal to Composites, Metal to Glass, Plastic, Plastic to Rubber, Plastic to Composites, Plastic to Glass, Rubber, Rubber to Composites, Rubber to Glass, Composites, Glass | 10 | 0000000 | 000000 |
0.1 | One-Time-Use Packet | 5 min. | 24 hrs. | 2,280 | 10 | 1.33:1 | Thick Liquid (11,000 cP) | -40° to 200° | Beige | Metal, Metal to Plastic, Metal to Rubber, Metal to Composites, Plastic, Plastic to Rubber, Plastic to Composites, Rubber, Rubber to Composites, Composites | 10 | 0000000 | 00000 |
Each | ||
Mixer Nozzle for 1.64 fl. oz. 3M Cartridges (Step Tip) | 0000000 | 00000 |
Mixer Nozzle for 1.64 fl. oz. 3M Cartridges (Taper Tip) | 0000000 | 0000 |
Replacement Plunger for 1.64 fl. oz. 3M Cartridges | 0000000 | 00000 |
Dispensing Gun for 1.64 fl. oz. 3M Cartridges | 0000000 | 000000 |
Air-Powered Dispensing Gun for 1.64 fl. oz. 3M Cartridges | 0000000 | 000000 |
Optically Clear Epoxy Structural Adhesives
For invisible bond lines, these adhesives dry clear. Epoxies are the strongest and most weather- and chemical-resistant structural adhesives. Choose an epoxy that hardens quickly for fast repairs, or one that hardens slowly to allow more time for positioning.
The size listed is the combined total of the two parts. Use cartridges with a dispensing gun and mixer nozzle to simultaneously mix and dispense adhesives.

Container | Strength | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel, lbs./in. wd. | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | For Joining | Each | |
608 | 1.69 | Cartridge | 5 min. | 24 hrs. | 2,980 | Not Rated | 1:1 | Paste (100,000 cP) | -65 to 130° F | Metal, Plastic, Rubber | 0000000 | 000000 |
Instant-Bond Adhesive Gel for Large Gaps

These thick gels fill the largest gaps of any of our instant-bond adhesives. They won't drip on vertical surfaces. Use the included mixer nozzles to simultaneously mix and dispense adhesive.
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 | Max. Gap Size Filled | Begins to Harden | Reaches Full Strength | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
Loctite® Adhesives | ||||||||||||
3092 | 0.3 | Syringe | 0.2" | 15 sec. | 24 hrs. | 10:1 | Gel (Not Rated) | 0° to 170° | Clear | Metal, Plastic, Rubber, Wood | 0000000 | 000000 |
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 potting compounds can be applied precisely through the included mixer nozzle. You’ll need a dispensing gun (sold separately). US2350™ also require a 4:1 plunger (sold separately) to dispense.
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.
Compounds that cannot be sold to the listed areas are restricted by product labeling requirements.

Dry Time | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Container Size, fl. oz. | Consistency | Touch, min. | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | For Use On | Color | Each | |
Loctite® Compounds—Medium Hard | |||||||||||
US2350 | 1.69 | Thick Liquid | 90 | 24 | 950 | 0.51 | -40° to 250° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Ceramic, Glass, Polycarbonate Plastic, Polyurethane Rubber, ABS Plastic, PVC Plastic, Polyimide Plastic, Garolite | Black | 0000000 | 000000 |
Loctite® Compounds—Soft | |||||||||||
US2651 | 6.76 | Thin Liquid | 10 | 16 | 1,050 | Not Rated | -85° to 250° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Ceramic, Glass, Polycarbonate Plastic, Polyurethane Rubber, ABS Plastic, PVC Plastic, Polyimide Plastic, Garolite | Amber | 0000000 | 00000 |

Dry Time | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Container Size, fl. oz. | Consistency | Touch, min. | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | For Use On | Color | Cannot Be Sold To | Each | |
Extra Hard | |||||||||||
12.6 | Thin Liquid | 45 | 24 | 400 | 0.3 | -55° to 245° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Ceramic, Glass, Polycarbonate Plastic, Polyurethane Rubber, ABS Plastic, PVC Plastic, Polyimide Plastic, Garolite | Black | Canada | 00000000 | 000000 |
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, hrs. | Hardness Rating | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | For Use On | Color | Cannot Be Sold To | Each | |
12.6 | Thin Liquid | 10 | 24 | Hard | 370 | 0.3 | -55° to 245° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Ceramic, Glass, Polycarbonate Plastic, Polyurethane Rubber, ABS Plastic, PVC Plastic, Polyimide Plastic, Garolite | Black | Canada | 0000000 | 000000 |
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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Container Size, fl. oz. | Consistency | Touch, hrs. | Overall, hrs. | Hardness Rating | Dielectric Strength, V/mil | Temp. Range, °F | Environment | For Use On | Autoclavable | Each | |
1.69 | Thick Liquid | 12 | 24 | Extra Hard | 500 | -50° to 350° | Corrosive, Salt Spray, Submersible | Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Titanium, Polystyrene Plastic, Polycarbonate Plastic, Polyurethane Rubber, ABS Plastic, PVC Plastic, CPVC Plastic, PVDF Plastic, Polyimide Plastic, HDPE Plastic, Nylon Plastic, PEEK Plastic, Polyethylene Plastic, UHMW Plastic, Polypropylene Plastic, Glass | Yes | 0000000 | 000000 |

For Cartridge Size | Each | |
1.69 fl. oz. | 00000000 | 000000 |

For Cartridge Size | Each | |
1.69 fl. oz. | 00000000 | 00000 |
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 | ||||||||
---|---|---|---|---|---|---|---|---|
Container Size, fl. oz. | Consistency | Touch, hrs. | Overall, hrs. | Hardness Rating | Temp. Range, °F | For Use On | Each | |
1.69 | Thick Liquid | 24 | 72 | Soft | -85° to 275° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Ceramic, Glass | 0000000 | 000000 |

For Cartridge Size | Each | |
1.69 fl. oz. | 00000000 | 000000 |

For Cartridge Size | Each | |
1.69 fl. oz. | 00000000 | 00000 |
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 | Reaches Full Strength | Mix Ratio | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Wd. | Dp. | Temp. Range, °F | For Joining | Color | Each | |
Loctite® Polyurethane | |||||||||||||||
PC 6231 | 8.6 | Cartridge | 3 min. | 90 min. | 1:1 | 82% | -10% to 10% | Hard (Durometer 75A) | 3/4" | 2 1/4" | -40° to 120° | Metal, Plastic, Rubber, Asphalt, Composites, Glass, Masonry, Wood | Gray | 0000000 | 000000 |