LOCTITE 518 is a medium-strength, general purpose gasketing product with 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. LOCTITE 518 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 motor housings.

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