Medium-strength, general purpose gasketing product - excellent contamination tolerance. Ideal for use on casted iron, steel and aluminum flanges.

LOCTITE 518 cures when confined in the absence of air between close-fitting metal surfaces. It is an anaerobic gasketing material designed for use on rigid iron, aluminum, and steel flanged mating surfaces. Fills gaps up to 0.25mm and forms a flexible, chemical-resistant seal that will not tear or decay. Parts disassemble easily, even after extended service. Typical applications include sealing close-fitting joints between rigid metal faces and flanges. It is also used as a formed-in-place gasket on rigid flanged connections, e.g. transmissions and engine housings. 

NEW: Henkel has recently improved the product formulation of LOCTITE 518 providing:

• Higher strength on contaminated surfaces
• Better flexibility and improved adhesion
• Enhanced sealing capability
• Improved gap cure
• High performance on passive metals without an activator

Your benefits

• Semi-flexible, medium-strength anaerobic flange gasket
• For active and inactive rigid metal flanges
• Cures through minor surface contamination
• Adapts to flange surface irregularities and gaps up to 0.25 mm
• Gel-type consistency
• Seals instantly against low pressure
• Reduces inventory costs – no need for large inventory of cut gaskets
• Resists high pressure when fully cured
• No compression set or misaligned gaskets
• Easy to automate
• Reduces process costs – eliminates manual assembly of conventional gaskets
• NSF P1 Reg. No. 123758
• Temperature Resistance: 150°C