Loctite Industrial Adhesives, Sealants, Retaining compounds & Threadlockers
Loctite adhesives provide industrial adhesive, sealant, and maintenance solutions designed to improve equipment reliability, reduce downtime, and extend component service life.
Key solutions include:
Threadlockers – prevent loosening of threaded fasteners caused by vibration and thermal cycling. Retaining Compounds – secure bearings, bushes, shafts, gears, and cylindrical components.
Thread Sealants – seal threaded pipe connections against leakage of gases and fluids.
Flange Sealants – create reliable seals between metal flange surfaces and replace traditional gaskets in many applications.
Instant Adhesives – fast bonding for rubber, plastic, metal, and other materials. Structural Adhesives – high-strength bonding for demanding industrial assemblies.
Gasketing & Silicone Sealants – form flexible or rigid seals for machinery and equipment.
Metal Repair Compounds – repair worn, cracked, corroded, or damaged metal components.
Anti-Seize & Lubrication Solutions – protect components during assembly, operation, and maintenance. Industries served include automotive, manufacturing, engineering, construction equipment, electrical and electronics, transportation, energy, and general industrial maintenance.
Loctite Products Categories
Loctite Threadlockers
LOCTITE Threadlocker is a high-performance adhesive solution designed to secure threaded fasteners and prevent loosening caused by vibration, shock, and thermal cycling. It provides reliable thread locking, sealing, and corrosion protection for a wide range of industrial and maintenance applications.
Loctite Thread Sealants
LOCTITE Thread Sealants are designed to seal threaded pipe and fitting connections, helping prevent leaks of gases, water, oils, and other industrial fluids. They provide reliable sealing, chemical resistance, and durable performance in demanding industrial and maintenance applications.
Loctite Instant Instant adhesives
LOCTITE Instant Adhesives are fast-curing cyanoacrylate adhesives designed for quick, strong bonding of materials such as metal, plastic, rubber, wood, and ceramics. They provide reliable performance, precise application, and excellent bonding strength for industrial, maintenance, and general assembly applications.
Loctite Retaining Compounds
LOCTITE Retaining Compounds are high-performance adhesives designed to secure cylindrical components such as bearings, shafts, bushings, gears, and sleeves. They fill gaps between mating surfaces, prevent loosening and movement, reduce wear and corrosion, and improve the reliability and service life of assemblies.
Loctite Threadlockers
Loctite 270 – High strength threadlocker
LOCTITE 270 is a high-strength, permanent threadlocker designed to secure threaded fasteners and prevent loosening caused by vibration. It is ideal for applications where maximum locking strength and long-term reliability are required.
Loctite 290 – Medium strength threadlocker
LOCTITE 290 is a medium-to-high-strength, wicking threadlocker designed to penetrate pre-assembled threaded fasteners. It prevents loosening and leakage caused by vibration, making it ideal for applications where disassembly is infrequent.
Loctite 271 – high strength threadlocker
LOCTITE 271 is a high-strength, permanent threadlocker designed to lock and seal threaded fasteners against loosening caused by vibration and shock. It is ideal for heavy-duty applications where maximum locking strength is required.
Loctite 262 – Threadlocker
LOCTITE Retaining Compounds are high-performance adhesives designed to secure cylindrical components such as bearings, shafts, bushings, gears, and sleeves. They fill gaps between mating surfaces, prevent loosening and movement, reduce wear and corrosion, and improve the reliability and service life of assemblies.
Loctite 263- High strength threadlocker
LOCTITE 263 is a high-strength, red threadlocker designed to secure and seal threaded fasteners against loosening caused by vibration and shock. Ideal for permanent assemblies and heavy-duty industrial applications.
Loctite 272 – High strength threadlocker
LOCTITE 272 is a high-strength, high-temperature threadlocker designed to secure and seal threaded fasteners against loosening caused by vibration and heat. It is ideal for heavy-duty industrial applications and permanent assemblies.
Loctite 248 – high strength threadlocker
LOCTITE 248 is a high-strength, medium-viscosity threadlocker in a convenient stick format. It prevents threaded fasteners from loosening due to vibration and is ideal for maintenance, repair, and industrial assembly applications.
Loctite 277 – High strength Threadlocker
LOCTITE 277 is a high-strength, red threadlocker designed for locking and sealing large threaded fasteners. It prevents loosening caused by vibration and is ideal for heavy-duty industrial applications and permanent assemblies.
Loctite Instant Adhesives
LOCTITE 406 – instant adhesfor plastic and rubber
LOCTITE 406 is a fast-curing instant adhesive formulated for bonding plastics and rubbers. It provides strong, reliable bonds with excellent performance on a wide range of industrial components and assembly applications.
Loctite 480 – Instant adhesive
LOCTITE 480 is a toughened, fast-curing instant adhesive formulated for bonding metal, rubber, and plastic components. It offers excellent impact and shock resistance, making it ideal for demanding industrial assembly and repair applications.
Loctite 495 – Instant adhesive
LOCTITE 495 is a fast-curing, general-purpose instant adhesive designed for bonding metal, rubber, plastic, and other substrates. It provides strong bonds with rapid fixture time, making it ideal for industrial assembly, repair, and maintenance applications.
Loctite 401- Instant adhesive
LOCTITE 401 is a fast-curing, general-purpose instant adhesive designed for bonding a wide range of materials, including metals, plastics, rubber, wood, and porous surfaces. It provides strong, reliable bonds for industrial assembly, repair, and maintenance applications.
LOCTITE 414 – instant adhesive
LOCTITE 414 is a fast-curing, high-strength instant adhesive (cyanoacrylate) designed for bonding plastics, rubber, metals, and other materials. It provides excellent adhesion with quick fixture time, making it ideal for precision assembly and general industrial applications.
Loctite 435 – Instant adhesive
LOCTITE 435 is a toughened, fast-curing instant adhesive designed for bonding metals, plastics, rubber, and porous materials. It offers excellent impact and shock resistance, making it ideal for demanding industrial assembly and repair applications.
Loctite 415 – Instant adhesive
LOCTITE 415 is a fast-curing, high-strength instant adhesive (cyanoacrylate) designed for bonding metal surfaces. It provides excellent shear strength and rapid fixture time, making it suitable for industrial assembly, repair, and maintenance applications.
Loctite 454 – Instant adhesive
LOCTITE 454 is a high-strength, gel-type instant adhesive that provides fast curing and excellent bonding on vertical and overhead surfaces. It is suitable for bonding metals, plastics, rubber, and porous materials in industrial assembly and repair applications.
Loctite Thread Sealants
options
Loctite adhesives are available in several types for different pipe materials. Additionally, they vary by thread sizes and service conditions.
Liquid Thread Sealants (Anaerobic) cure in the absence of air on metal threads. This provides leak-proof sealing and vibration resistance. Examples include LOCTITE 542, LOCTITE 545, LOCTITE 565, LOCTITE 567, and LOCTITE 577.
Thread Sealing Cord is a flexible cord that seals threaded pipe fittings instantly and allows easy adjustment after assembly. Example: LOCTITE 55 PTFE-Based Thread Sealants are formulated with PTFE for enhanced lubricity and reliable sealing of metal pipe threads.
Silicone Thread Sealants are silicone-based sealants designed for applications requiring flexibility and resistance to moisture and temperature. Examples: LOCTITE SI 5331 and LOCTITE SI 569. These thread sealants are commonly used in hydraulic systems, pneumatic equipment, gas lines, water pipelines, and industrial process piping to prevent leaks while resisting vibration, pressure, and corrosion.
Loctite Retaining Compounds
Types of LOCTITE® Retaining Compounds
LOCTITE offers a range of retaining compounds designed for different assembly fits, temperatures, and repair applications. Common products include:
LOCTITE® 603 – Oil-tolerant retaining compound for bearings and bushings
LOCTITE® 609 – General-purpose retaining compound for close-fitting cylindrical parts. LOCTITE® 620 – High-temperature retaining compound for demanding industrial applications. LOCTITE® 638 – High-strength, gap-filling retaining compound for shafts, gears, sleeves, and bearings. LOCTITE® 648 – High-performance retaining compound with excellent temperature and vibration resistance. LOCTITE® 660 – Repair-grade retaining compound for restoring worn shafts, housings, and cylindrical assemblies. LOCTITE® 680 – High-strength retaining compound for close-fitting assemblies requiring maximum bond strength.
These retaining compounds are widely used to bond bearings, bushings, gears, pulleys, sleeves, and shafts. They improve equipment reliability and extend component life in industrial, automotive, and maintenance applications. Loctite 546 is another general-use adhesive product.
LOCTITE Metal Putty
LOCTITE Metal Putty is a high-performance epoxy repair compound formulated to rebuild, repair, and restore worn or damaged metal components. Filled with metal particles, these two-part epoxy putties provide excellent adhesion, high compressive strength, and outstanding resistance to abrasion, corrosion, chemicals, and impact. They are ideal for extending the service life of industrial equipment while reducing downtime and replacement costs.
Key Benefits:
- Rebuilds worn, cracked, or damaged metal parts
- Excellent adhesion to steel, cast iron, aluminum, and other metals
- High compressive and mechanical strength
- Resistant to abrasion, corrosion, chemicals, and moisture
- Easy to mix, apply, machine, drill, tap, and sand after curing
- Minimizes equipment downtime and maintenance costs
- Suitable for emergency and preventive repairs
Common Applications:
- Repairing worn shafts, keyways, and bearing housings
- Rebuilding pump casings, impellers, and valve bodies
- Restoring gearbox and motor components
- Repairing cracked castings and machinery bases
- Filling pits, cavities, and damaged metal surfaces
- Maintenance of industrial equipment, mining machinery, and processing plants
- Marine, power generation, and manufacturing equipment repairs
Popular Loctite Metal Putty Products:
- LOCTITE EA 3471 – Steel-filled epoxy for general metal repairs
- LOCTITE EA 3472 – Steel-filled, pourable epoxy for casting and rebuilding
- LOCTITE EA 3473 – Fast-curing steel-filled repair compound
- LOCTITE EA 3474 – Aluminum-filled epoxy for lightweight metal repairs
- LOCTITE EA 3475 – Aluminum-filled repair compound with excellent machinability
- LOCTITE EA 3478 – Superior Wear metal repair putty for abrasion-resistant repairs
LOCTITE Metal Putty products are trusted across industries including manufacturing, mining, cement, power generation, marine, oil & gas, and heavy engineering for reliable metal restoration, equipment maintenance, and long-lasting performance.
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Silicone Rubber bonding adhesive
LOCTITE Silicone Rubber Bonding Adhesives are high-performance RTV (Room Temperature Vulcanizing) silicone adhesives and sealants designed to bond, seal, and protect silicone rubber and a wide range of other materials. They cure at room temperature to form a flexible, durable, and weather-resistant elastomer, making them ideal for applications requiring excellent flexibility, vibration resistance, and long-term environmental protection.
Key Benefits:
- Strong, flexible bond with excellent elasticity
- Outstanding resistance to moisture, UV light, ozone, and weathering
- Withstands high and low temperature extremes
- Excellent resistance to vibration and thermal cycling
- Suitable for sealing, gasket, and bonding applications
- Adheres to silicone rubber, glass, ceramics, metals, and many plastics
- Available in non-corrosive and sensor-safe formulations
Common Applications:
- Bonding silicone rubber components
- Forming and repairing gaskets
- Sealing electrical and electronic enclosures
- Automotive engine and transmission sealing
- HVAC and industrial equipment assembly
- Appliance manufacturing and maintenance
- Waterproof sealing of joints and housings
- General industrial maintenance and repair
Popular Loctite Silicone Adhesives:
- LOCTITE SI 595 – General-purpose RTV silicone sealant
- LOCTITE SI 5910 – Low-odor, flexible flange sealant
- LOCTITE SI 5920 – Copper RTV silicone for high-temperature applications
- LOCTITE SI 5699 – Flexible, waterproof silicone adhesive and sealant
- LOCTITE SI 5980 – Black RTV silicone for automotive gasket
- LOCTITE SI 5990 – Premium black RTV silicone with excellent oil resistance
LOCTITE Silicone Rubber Bonding Adhesives are widely used in the automotive, electronics, industrial manufacturing, HVAC, marine, and maintenance sectors where flexible, durable, and weather-resistant bonding and sealing are required.
Loctite Pipe Sealing Cord
LOCTITE Pipe Sealing Cord is a high-performance, multi-filament sealing cord designed to create instant, reliable seals on threaded metal and plastic pipe fittings. Unlike traditional PTFE tape or pipe compounds, it provides a clean, easy-to-apply solution that allows fittings to be adjusted after assembly while maintaining a leak-proof seal. It is ideal for plumbing, industrial maintenance, gas, water, and compressed air systems.
Key Benefits:
- Provides an instant, leak-proof seal
- Suitable for both metal and plastic threaded fittings
- Allows fittings to be repositioned after assembly
- Easy, clean, and quick to apply
- Resistant to water, gas, oils, fuels, and many chemicals
- Eliminates the mess associated with liquid sealants and PTFE tape
- Certified for a wide range of plumbing and industrial applications
Common Applications:
- Water supply systems
- Gas pipeline connections
- Compressed air systems
- Hydraulic and pneumatic fittings
- Industrial process piping
- Plumbing and HVAC installations
- Maintenance, repair, and assembly of threaded pipe joints
Popular Loctite Pipe Sealing Cord:
- LOCTITE 55 – Multi-purpose pipe sealing cord for sealing threaded metal and plastic pipe connections. It provides an immediate seal and allows easy adjustment of fittings without compromising sealing performance.
Industries Served:
- Plumbing
- HVAC
- Industrial manufacturing
- Oil & gas
- Water treatment
- Chemical processing
- Marine
- General maintenance and repair
LOCTITE Pipe Sealing Cord, especially LOCTITE 55, is trusted by professionals worldwide for creating fast, reliable, and long-lasting seals on threaded pipe connections while reducing installation time and maintenance costs.
Loctite Rubber Adhesives
Loctite Rubber Adhesives are high-performance industrial adhesives specially formulated to bond natural rubber, synthetic rubber, elastomers, and rubber-to-metal, rubber-to-plastic, and rubber-to-ceramic assemblies. These fast-curing adhesives provide strong, durable bonds with excellent resistance to impact, vibration, moisture, oils, and environmental exposure, making them ideal for manufacturing, maintenance, and repair applications.
Key Benefits:
- Fast curing for increased production efficiency
- High-strength, long-lasting bonds
- Excellent adhesion to rubber, metal, plastics, ceramics, and composites
- Resistant to vibration, impact, moisture, oils, and many chemicals
- Available in low, medium, and high-viscosity formulations
- Suitable for precision assembly and industrial repairs
- Reliable performance in demanding environments
Common Applications:
- Bonding rubber seals and gaskets
- O-rings and elastomer components
- Rubber-to-metal assemblies
- Rubber-to-plastic bonding
- Automotive weatherstrips and trim
- Conveyor belts and industrial rubber parts
- Appliance and electronic component assembly
- General industrial maintenance and repair
Popular Loctite Rubber Adhesives
- LOCTITE 406 – Low-viscosity instant adhesive designed for bonding rubber and plastics.
- LOCTITE 401 – General-purpose cyanoacrylate suitable for rubber, wood, leather, and porous materials.
- LOCTITE 480 – Rubber-toughened instant adhesive offering excellent impact and peel resistance.
- LOCTITE 454 – Non-drip gel adhesive for vertical surfaces and gap-filling applications.
- LOCTITE 495 – Fast-curing, general-purpose instant adhesive for rubber and metal bonding.
Industries Served:
- Automotive
- Electronics
- Medical device manufacturing
- Industrial equipment
- Aerospace
- Consumer products
- Maintenance, Repair & Operations (MRO)
LOCTITE Rubber Adhesives are trusted by manufacturers and maintenance professionals worldwide for delivering fast, reliable, and durable rubber bonding solutions across a wide range of industrial and commercial applications.
Loctite – Frequently Asked Questions (FAQs)
- What are Loctite products used for?
Loctite products are used for industrial assembly, maintenance, repair, and manufacturing. The range includes threadlockers, retaining compounds, instant adhesives, sealants, gasket products, structural adhesives, and metal repair compounds. - What is the difference between Loctite Threadlocker and Retaining Compound?
Threadlockers prevent threaded fasteners such as nuts and bolts from loosening due to vibration. Retaining compounds secure cylindrical parts like bearings, bushes, sleeves, gears, and shafts. - Which Loctite threadlocker should I choose?
Purple (222): Low strength for small fasteners.
Blue (242, 243): Medium strength, removable with standard tools.
Red (262, 263, 270, 271): High strength for permanent assemblies.
Green (290): Wicking grade for per-assembled fasteners. - How long does Loctite take to cure?
Most Loctite anaerobic adhesives achieve handling strength in 10–30 minutes and fully cure within 24 hours, depending on the product, materials, and temperature. - Can Loctite be used on stainless steel?
Yes. However, stainless steel is less reactive, so using a primer or activator may improve curing speed. - Can Loctite bond plastic or rubber?
Yes. Instant adhesives such as Loctite 406 are designed for bonding plastics and rubber. Difficult plastics like polyethylene (PE) and polypropylene (PP) typically require a compatible primer. - What is the difference between Loctite 242 and 243?
Loctite 243 is oil-tolerant and provides reliable performance on slightly contaminated fasteners, while Loctite 242 is intended for clean metal surfaces. - Can I remove a high-strength Loctite threadlocker?
Yes. High-strength grades can usually be removed by applying heat (around 250°C) and then using appropriate tools. - What surfaces should be cleaned before applying Loctite?
For the best results, remove oil, grease, dirt, and moisture from bonding surfaces before application. - Are Loctite products resistant to chemicals?
Many Loctite products offer excellent resistance to oils, fuels, water, coolants, and a wide range of industrial chemicals after full cure. - Can Loctite be used outdoors?
Yes. Many Loctite adhesives and sealants provide good resistance to moisture, weather, and temperature variations. - What temperature can Loctite products withstand?
Temperature resistance varies by product. Standard threadlockers generally withstand up to 150°C, while specialty grades and high-temperature sealants can tolerate much higher temperatures. - Can Loctite fill large gaps?
Gap-filling capability depends on the product. Retaining compounds and metal repair products are designed to fill larger gaps than standard threadlockers. - What is the shelf life of Loctite products?
Most unopened Loctite products have a shelf life of 12–24 months when stored according to the manufacturer’s recommendations. - How should Loctite products be stored?
Store them in their original, tightly closed containers in a cool, dry place away from direct sunlight and excessive heat. - Are Loctite products suitable for industrial maintenance?
Yes. Loctite products are widely used in manufacturing plants, automotive workshops, power generation, mining, construction, food processing, and general industrial maintenance. - Can Loctite replace welding or mechanical fasteners?
Some Loctite structural adhesives can replace welding, riveting, or mechanical fasteners in suitable applications, reducing weight and improving stress distribution. - Are Loctite products available in different package sizes?
Yes. Many products are available in multiple pack sizes to suit maintenance, workshop, and production requirements. - How do I select the right Loctite product?
Selection depends on the application, substrate material, operating temperature, chemical exposure, gap size, and required bond strength. - Where can I buy genuine Loctite products in India?
Purchase from authorized distributors or trusted industrial adhesive suppliers to ensure genuine products, technical support, and reliable performance.
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