Loctite 510 Joint former 50ml

LOCTITE® 510 is a high-performance anaerobic gasket sealant designed for sealing close-fitting rigid machined metal flanges exposed to high temperatures and aggressive chemicals. It cures in the absence of air between tightly fitted metal surfaces, creating a durable and reliable seal that eliminates the need for conventional pre-cut gaskets.

Its dimethacrylate ester formulation provides excellent thermal and chemical resistance while adapting to minor surface imperfections and scratches up to 0.25 mm. It is particularly suitable for transmission housings, engine casings, pumps, compressors and other rigid metal assemblies requiring long-lasting leak protection.

Key Features

• Anaerobic form-in-place gasket sealant for rigid metal flanges.


• High temperature resistance up to 204°C.


• Excellent resistance to oils, fuels, solvents and chemicals.


• Fills surface imperfections and gaps up to 0.25 mm.


• Eliminates the need for conventional gaskets.


• Provides an immediate low-pressure seal after assembly.


• Increases the load-bearing and torque capacity of assembled flanges.


• Thixotropic consistency prevents running during application.

Recommended Applications

• Transmission housing sealing.


• Engine and gearbox assembly.


• Pumps, compressors and hydraulic systems.


• Machined aluminium and steel flanges.


• Industrial equipment exposed to high temperatures and aggressive fluids.


• Maintenance, repair and manufacturing applications.

Technical Data

• Chemical base: Dimethacrylate ester.


• Colour: Pink.


• Cure type: Anaerobic.


• Physical form: Gel.


• Gap-filling capability: Up to 0.25 mm.


• Fixture time on steel: Approximately 25 minutes.


• Operating temperature: -55°C to +200°C.


• Maximum temperature resistance: 204°C.


• Recommended for use on aluminium and steel substrates.

With its outstanding heat and chemical resistance, LOCTITE® 510 provides a professional sealing solution for rigid flange assemblies in demanding industrial environments, ensuring long-term protection against leaks and pressure loss.