Loctite Industrial Adhesives, Threadlockers & Sealants
Loctite, a Henkel brand, is the global leader in industrial adhesives, threadlockers, sealants and surface treatments. With more than six decades of product development, Loctite is trusted by maintenance engineers, assemblers and manufacturers worldwide to solve fastening, sealing, bonding and protection challenges across mining, manufacturing, automotive, aerospace and general industry. AIMS Industrial stocks the complete Loctite product family — 99+ line items — from our Milperra warehouse with fast delivery Australia-wide.
Browse Loctite by application:
- Threadlockers — 222, 243, 263, 271, 272, 277, 290 (colour-coded by strength)
- Retaining compounds — 609, 620, 638, 641, 648, 660, 680
- Thread sealants — 55 sealing cord, 565, 567, 577, 569 hydraulic, 5331
- Instant adhesives (super glues) — 401, 406, 416, 424, 435, 454, 460, 480
- Structural & epoxy adhesives — 324 Speedbonder, 330 high impact, HY 4070 hybrid
- Flange sealants & RTV silicones — 515, 518, 587 Blue Maxx, 596, 598, SI 587
- Anti-seize compounds — Silver Grade, Nickel 771, Copper C5-A, Food Grade
- Activators, cleaners & primers — surface preparation for instant and structural bonding
- Pipe sealants — for pressurised hydraulic and pneumatic threaded connections
Threadlockers — colour-coded by strength
Loctite threadlockers prevent fastener loosening under vibration and seal threads against fluid ingress. Selected by strength using the Loctite colour-coding system:
- Purple (low strength) — Loctite 222 for small fasteners (under M6), adjustment screws and applications requiring later disassembly. See our Loctite 222 guide.
- Blue (medium strength) — Loctite 243 and 242 for general-purpose machinery and service-disassembly fasteners (M6 to M20). See our Loctite 243 guide.
- Red (high strength) — Loctite 263, 271, 272, 277 for permanent or rarely-disassembled fasteners under heavy load or shock. Requires heat for removal.
- Green (wicking) — Loctite 290 for sealing and securing pre-assembled fasteners by capillary action — penetrates around threads without disassembly.
For complete background on threadlocker selection across the full Loctite range, see our Loctite application ultimate guide.
Retaining compounds — for cylindrical fits
Loctite retaining compounds bond cylindrical assemblies — bearings on shafts, sleeves into housings, gears on shafts — eliminating fretting wear and increasing load capacity beyond press-fit alone. Selection by gap fill and strength: 609 and 620 for slip-fit assemblies; 638, 641 and 648 for general retention; 660 and 680 for emergency repair of worn fits where dimensional tolerances are out of spec. Surface preparation matters — use Loctite activators or cleaners for consistent cure on oily or low-energy surfaces.
Thread sealants — for pressurised joints
Loctite thread sealants seal pressurised pipe and hydraulic threaded connections against leakage. Loctite 567 (low strength PST) for stainless and aluminium fittings requiring later disassembly — see our Loctite 567 guide. Loctite 577 (medium strength) for general industrial pneumatic and hydraulic threaded connections — see our Loctite 577 guide. Loctite 569 for high-pressure hydraulics. Loctite 55 sealing cord for plumbing and water connections. For broader pipe sealant context, see our pipe sealants range.
Instant adhesives (cyanoacrylates)
Loctite cyanoacrylate instant adhesives bond plastic, rubber, metal and ceramic in seconds. Loctite 401 (general-purpose) and 406 (low-bloom, plastic and rubber) cover most workshop applications — see our Loctite 401 guide for selection and surface preparation. Loctite 416 for thicker bond lines, 424 for gap-filling, 435 for tough/peel resistance, 454 in gel form for vertical surfaces, 460 for low-bloom precision work, 480 for shock and impact applications. Cyanoacrylate cure depends on surface moisture — primer compounds from activators, cleaners & primers dramatically improve cure on low-energy plastics. See also our industrial adhesive types guide.
Structural & epoxy adhesives
Loctite structural adhesives bond load-bearing assemblies where the joint itself must carry the design load. Loctite 324 Speedbonder for rapid-cure metal-to-metal bonding. Loctite 330 for high-impact applications including industrial repairs. Loctite HY 4070 hybrid for combined fast cure and structural strength. For background on epoxy adhesive selection — pot life, peel strength, gap fill — see our epoxy adhesive guide. For repair of worn or damaged metal surfaces, see epoxy ceramic repairs.
Flange sealants & RTV silicones
Loctite flange sealants form in-place gaskets for bolted flange assemblies — eliminating the inventory and reliability issues of cut gaskets. Loctite 515 (purple, general flexible) and 518 (red, rigid flange) are anaerobic gasket makers cured by metal contact. Loctite 587 Blue Maxx and 596, 598 are RTV silicones for higher-temperature applications. For complete RTV silicone selection guidance, see our RTV silicone gasket-maker guide. For sealant-applicator equipment, see multi-purpose sealants.
Anti-seize compounds
Loctite anti-seize compounds prevent galling, seizing and corrosion on threaded fasteners and machined fits exposed to high temperature, chemical attack or extended service intervals. Silver Grade (general industrial), Nickel 771 (high temperature, stainless on stainless), Copper C5-A (high temperature, automotive and general) and Food Grade (NSF H1 for food processing equipment). For background on anti-seize selection and torque adjustment when using anti-seize, see our anti-seize compound guide.
Specialty products
The Loctite specialty range includes activators and primers (covered above), penetrating oils, industrial degreasers, rust treatments and anti-spatter sprays for welding. For background on industrial degreaser selection across the Loctite, CRC, INOX and Wurth ranges, see our industrial degreaser guide.
Selecting the right Loctite product
Loctite threadlockers are colour-coded by strength (purple = low, blue = medium, red = high). Retaining compounds, sealants and structural adhesives carry numeric codes that correspond to viscosity, cure speed, temperature performance and gap fill. The single most useful selection resource is our Loctite application ultimate guide — covers product family selection by application and use case across the whole Loctite catalogue.
If you need help identifying the right product for a specific application — particularly for OEM specification, critical machinery, or where the Loctite product number is uncertain — call (02) 9773 0122, contact our team or request a quote. AIMS Industrial has supplied Loctite to Australian industry since 1988.