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 motor 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
 
-   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