Loctite 290 Threadlocker Adhesive 50ml - Medium/High Strength

Loctite 290 Threadlocker is a medium/high strength, low viscosity adhesive that is engineered for locking preassembled fasteners. Its unique wicking action works via capillary action to flow between engaged threads, allowing you to secure bolts and screws without disassembly. This makes it ideal for applications where access is limited or reassembly is impractical.

Once applied, the adhesive cures in the absence of air between close-fitting metal surfaces, effectively preventing loosening and leakage caused by shock, vibration, and thermal cycling. It is particularly effective on vibrating assemblies such as pumps, gearboxes, and presses, where it helps to reduce maintenance and downtime. In addition to its threadlocking capabilities, this product can fill porosity in welds, castings, and powdered metal components, enhancing the structural integrity of your assemblies.

Key Features

• Wicking action for preassembled fasteners
• Medium/high strength for demanding applications
• Cures in the absence of air to prevent loosening
• Low viscosity enables excellent capillary action
• Works on metal surfaces only
• Requires heat for disassembly, providing a permanent lock

Applications

• Locking instrumentation fasteners, electrical connectors, and set screws
• Preventing loosening on pumps, gear boxes, and presses
• Sealing and filling porosities in welds, castings, and powdered metal parts

With a volume of 50ml, this adhesive is delivered in a convenient bottle for easy application. The green colour allows for clear identification. For reliable fixation of your critical assemblies, trust Loctite 290.