Buy Loctite Industrial Adhesives, Sealants & Maintenance Products

Loctite industrial adhesives and maintenance solutions

Loctite Maintenance Solutions provide a comprehensive range of industrial adhesives, sealants, repair compounds and maintenance products designed to help prevent equipment failure, repair damaged components and extend machinery service life. The range includes threadlockers, retaining compounds, thread sealants, flange sealants, instant adhesives, structural adhesives and metal repair solutions.

Loctite maintenance products are used for applications such as thread locking, thread sealing, bearing and shaft retention, flange sealing, component bonding, gap filling, wear repair and rebuilding damaged metal surfaces. They can help reduce loosening, leakage, corrosion, vibration-related failures and unplanned maintenance downtime.

From routine equipment maintenance to demanding industrial repairs, the appropriate Loctite product can be selected according to the substrate, operating temperature, gap, chemical exposure, required strength and service conditions.

Key applications include:

• Thread locking and vibration resistance

• Shaft, bearing and bushing retention

• Pipe and hydraulic thread sealing

• Flange and gasket sealing

• Instant bonding of metal, rubber and plastics

• Metal repair and surface rebuilding

• Wear, corrosion and erosion repair

• Preventive maintenance and equipment reliability

• LOCTITE Maintenance Solutions — Bond, Seal, Lock and Repair for Industrial Equipment.

Instant Adhesives (Cyanoacrylates): Rapid Bonding for Multi-Substrate Needs

LOCTITE Instant Adhesives are fast-curing cyanoacrylate adhesives designed for bonding a wide range of materials with excellent speed and precision. They form strong bonds within seconds and are available in different viscosities and formulations for various substrates and application requirements.

LOCTITE instant adhesives are suitable for metal, rubber, plastics, ceramics, wood, and other materials, depending on the specific grade. They are widely used for assembly, repair, manufacturing, and maintenance applications.

Ideal for: small and precise assemblies, rubber and plastic components, metal parts, electronics, automotive components, appliances, and general industrial repairs.

Instant adhesives selection formula

1. Plastic/rubber → 406

2. General purpose → 401 / 495

3. Tough/impact → 435 / 480

4. Gel/vertical → 454

5. Large gap → 3090 / 3092

6. Low bloom/odor → 460

7. High temperature → 402

8. Difficult PP/PE/PTFE → 406 + SF 770

Gasketing & Flange Sealants: Eliminate Pre-Cut Gasket Failures

Loctite Flange Sealants are anaerobic sealants designed to create reliable, leak-resistant seals between rigid metal flanges. They fill surface imperfections and gaps between mating flanges, helping prevent leakage of oils, coolants, hydraulic fluids, and other industrial media.

Available in different formulations and strengths, LOCTITE flange sealants are suitable for a wide range of industrial and automotive applications and can help reduce the need for conventional pre-cut gaskets.

Ideal for: engine and transmission housings, pumps, compressors, gearboxes, rigid metal flanges, and industrial machinery.

Loctite Flange sealants -Easy rule to remember

1. Rigid + general purpose → 518

2. Rigid + larger gap → 515

3. Rigid + high temperature → 510

4. Rigid + oil/water/glycol → 574

5. Flexible/stamped flange → SI 5910

6. Large gap → Silicone flange sealant

Henkel describes LOCTITE 518 as a general-purpose, semi-flexible anaerobic flange sealant for rigid metal flanges, with gap performance up to 0.25 mm.

LOCTITE 515 is specifically positioned for close-fitting rigid machined metal flanges where larger gap filling is needed, also up to 0.25 mm.

LOCTITE 574 is a general-purpose FIPG sealant for close-fitting rigid metal faces and provides resistance to oil, water and glycol.

Threadlockers: Prevent Vibration Loosening and Fastener Failure

Loctite threadlockers are anaerobic adhesives designed to secure threaded fasteners and help prevent loosening caused by vibration, shock, and thermal cycling. They fill the gaps between mating threads, creating a strong bond and helping protect assemblies against leakage and corrosion.

Available in different strengths and viscosities, LOCTITE Threadlockers are suitable for a wide range of industrial applications, from removable fasteners to permanent high-strength assemblies. Popular grades include LOCTITE 222, 243, 262, 270, and 271

Ideal for: bolts, nuts, screws, studs, threaded assemblies, machinery, automotive components, pumps, motors, and industrial equipment.

Loctite threadlocker selection rule

1. 🟣 LOCTITE 222 — Small + removable

   Use when you want a low-strength threadlocker and the fastener needs to be removed during servicing. Henkel specifically describes 222 for small fasteners.

2. 🔵 LOCTITE 243 — General-purpose choice

   A good medium-strength option when you want the assembly secured but still removable with normal hand tools. Henkel describes 243 as a medium-strength, primerless threadlocker.

3. 🔴 LOCTITE 263 / 270 — High strength

   For applications where loosening must be strongly resisted and disassembly is less frequent. High-strength grades can require heat for removal.

4. 🟢 LOCTITE 290 — Already assembled threads

   Its low viscosity allows it to wick into assembled threads, so you don't necessarily have to disassemble the joint before application.

5. 🔥 LOCTITE 272 — High temperature + high strength

   Use where a high-strength threadlocker is also required to withstand elevated temperatures.

Retaining Compounds: Maximize Shear Strength on Cylindrical Assemblies

Loctite Retaining Compounds are high-performance anaerobic adhesives designed to secure cylindrical, close-fitting metal components and prevent unwanted movement between mating parts. They fill gaps between surfaces, creating a strong bond that helps improve the reliability of assemblies exposed to vibration, shock, and operating loads.

These compounds are suitable for retaining bearings, bushings, shafts, gears, pulleys, rotors, and other cylindrical components. Different grades are available for varying gap sizes, bond strengths, and temperature requirements.

Ideal for: bearing retention, shaft and hub assemblies, bushings, gears, rotors, sleeves, and industrial machinery repairs.

Loctite Retaining compound Selection Rule

1. Close fit → LOCTITE 603 / 609

2. General-purpose retaining → LOCTITE 609 / 638

3. Medium gap → LOCTITE 638

4. High temperature → LOCTITE 620 / 648

5. Parts that need easier disassembly → LOCTITE 641

6. Worn or oversized parts → LOCTITE 660

7. High-strength close-fitting assembly → LOCTITE 680i

Thread Sealants: Leak-Proof Seals for High-Pressure Pipe Joints

Loctite Thread Sealants are engineered to seal threaded pipe and fitting connections, helping prevent leakage of gases and liquids under pressure. They cure in the absence of air between metal surfaces and provide reliable sealing while resisting vibration, pressure, and many industrial chemicals.

Available in different formulations for a range of pipe materials, pressures, temperatures, and applications, LOCTITE Thread Sealants are widely used in hydraulic, pneumatic, plumbing, automotive, and industrial equipment.

Ideal for: threaded pipes, fittings, valves, hydraulic systems, pneumatic connections, compressed-air systems, and industrial fluid lines.

Easy selection rule for loctite thread sealants

1. General metal pipe → 577

2. Fine hydraulic/pneumatic thread → 542

3. Hydraulic/pneumatic + high lubricity → 545

4. Coarse metal thread → 572

5. Instant low-pressure sealing → 565 / 567

6. Low-strength/easy removal → 569

7. High temperature/solvent exposure → 554

8. Metal or plastic pipe + thread cord → 55

9. High strength → 586

Structural Epoxies & Acrylics: High-Load Capacity and Impact Resistance

LOCTITE Metal Putty products are two-component epoxy repair compounds designed for rebuilding, repairing, and restoring damaged metal surfaces and components. They can be used to fill cracks, holes, pits, worn areas, and damaged surfaces, providing a durable repair that can be machined after curing, depending on the specific grade.

Different formulations are available for steel, aluminum, and other metal repair applications, with options designed for varying temperature, chemical, and mechanical requirements.

Ideal for: repairing machinery housings, pipes, tanks, shafts, flanges, castings, worn metal surfaces, and industrial equipment.

Simple selection rule

1. General steel repair → EA 3471

2. Emergency leak repair → EA 3463

3. Fast steel repair → PC 3473

4. Worn machinery → EA 3475 / EA 3479

5. Stainless-steel repair → EA 3476

6. Heavy-duty metal rebuilding → EA 3478

7. Aluminium casting → PC 7254

8. Extreme temperature → MR 2000

EA 3471 is a non-sagging, steel-reinforced epoxy putty intended for non-structural casting defects, worn surfaces, tanks, valves and cavitated areas; Henkel specifies an operating range of −30°C to 105°C.

EA 3463 is particularly useful for emergency repairs: it is a kneadable steel-filled epoxy that cures in about 10 minutes, can be used on damp surfaces and can cure underwater.

PC 3473 is a fast-curing steel-filled epoxy for worn shafts, housings, keyed connections, flanges, castings and pipes, with a stated operating range of −30°C to 95°C.

For extreme-temperature applications, LOCTITE MR 2000 is a different type of repair putty: Henkel specifies performance up to 1000°C and lists applications such as exhausts, headers and manifolds.