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
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
Technical Information
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


SKU 079340107342N
Barcode # 079340107342
Brand Loctite
Shipping Weight 0.1000kg
Shipping Width 0.100m
Shipping Height 0.100m
Shipping Length 0.100m
Shipping Cubic 0.001000000m3

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