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

Easy to automate

Reduces process costs – eliminates manual assembly of conventional gaskets

NSF P1 Reg. No. 123758

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

 

Applications Rigid Assembly Gasketing

Colour Red

Cure Schedule Temperature (Step 1) 200

Cure Schedule Temperature Unit (Step 1) °C

Fixture Time 25 min.

Fixture Time Temperature 25 °C

Full Cure Temperature 77 °F

Gap Fill 0.3 mm

Shelf Life Temperature -40 °C

Specific Gravity 1.1 g/l

Specific Gravity Temperature 25 °C

Substrates Metal: Aluminum

Temperature -65 - 300 °F

Tensile Shear Strength 7.5 N/mm²

Viscosity 500000 - 1000000 mPa.s (cP) Brookfield

Viscosity Temperature 77 °F