Loctite 234240 510 Gasket Eliminator Flange Sealant 300ml

Product Description

The LOCTITE 234240 is a 300ml cartridge of 510 Gasket Eliminator Flange Sealant, a liquid anaerobic flange sealant used as a formed-in-place gasket on rigid metal flanged assemblies. It cures to a flexible, solvent-resistant seal when confined between close-fitting metal surfaces and oxygen is excluded. The sealant fills surface imperfections and micro-gaps on machined or cast flanges, eliminating the need for cut gaskets. It handles a temperature range of -65 to 400 degrees F and is non-flammable, making it suitable for mechanical, plumbing, and light HVAC service applications. The red color aids in visual inspection after application. Full cure is reached in 24 hours.

This flange sealant is used wherever rigid metal flanges require a leak-free static seal without a precut gasket. Typical applications include pump housings, compressor end caps, transmission covers, and general industrial flange joints. It is suited to residential and light commercial mechanical service and is commonly applied by HVAC technicians, plumbers, and general maintenance mechanics working on cast iron, steel, and aluminum flanged connections. The 300ml cartridge format is intended for use with a standard cartridge dispensing gun for controlled application.

Key Features

• Anaerobic cure eliminates the need for precut or sheet gaskets on rigid metal flanges
• Operating temperature range of -65 to 400 degrees F suits a wide range of mechanical service conditions
• Non-flammable formulation with a VOC content of 0.77
• Full cure achieved in 24 hours under standard conditions
• Red color provides easy visual confirmation of sealant coverage
• 300ml cartridge format for use with a standard dispensing gun

Compatibility

Designed for general gasketing applications on rigid metal flanged assemblies including cast iron, steel, and aluminum surfaces where a formed-in-place gasket seal is required.

Installation Notes

Application is typically performed by a licensed HVAC technician, plumber, or qualified mechanic. Flanged surfaces must be clean, dry, and free of oil, old sealant, and debris before applying the product. Ensure the assembly is depressurized and, where applicable, the system is powered down before disassembly. Allow the full 24-hour cure time before returning the assembly to service pressure.