The Loctite 518 Flange Sealant (Part Number 246626) is a high-performance anaerobic gasket maker designed for use on rigid iron, steel, and aluminum flange surfaces. This 50 ml tube of sealant cures when confined in the absence of air between close-fitting metal surfaces, forming a flexible, non-shimming seal that resists low pressures immediately after assembly. It is ideal for sealing rigid flange connections, preventing leakage of oil, water, and other chemicals. The sealant provides excellent resistance to oil and glycol, ensuring reliable sealing in demanding industrial and automotive applications. It is also known as Loctite 518 Gasket Eliminator.