Close up of gasketing sealant being applied to gasket

Gasket Sealant / Flange Sealant

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Gasket sealants can provide up to 95% material savings over hard gaskets while offering flexibility in design, allowing for lower cost manufacturing methods.

Gasket sealants are used to prevent leakage of fluids or gases by forming impervious barriers. They cure in the presence of metal and the absence of air to form a durable seal between components.

Gasket sealants also eliminate corrosion and provide an instant, low-pressure seal on an assembly after full cure. Gasket sealants will not shrink, crack or relax, and resist displacement better than conventional gaskets.

LOCTITE® gasket sealants act as both a gasket sealant and a gasket adhesive between two flanges. The liquid sealant completely fills the space between the flange surfaces, thereby preventing the escape of gaseous or fluid materials in composite machine parts or pipe connections.  At the same time, adhesion to the flange surfaces enhances the strength of the assembly.

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Select the right gasket sealant for your needs:

LOCTITE Anaerobic Adhesive Packaging is now Recyclable!

Henkel teamed up with TerraCycle® to allow customers the opportunity to recycle used packaging instead of sending it to a landfill!

Click here to learn more

Vehicle Repair / Aftermarket

Gasket sealants designed for use on the repair maintenance of cars, motorcycles, trucks, and marine equipment.

Advantages of LOCTITE® Gasket Sealants as compared to conventional pre-cut compression gaskets:

  • Reduce inventory by using one product for all designs
  • Flow to fill all surface voids and irregularities
  • Eliminate gasket relaxation and creep
  • Prevent gasket displacement and slippage
  • Provide instant seal
  • Provide excellent chemical resistance
  • Seal to withstand high pressure when fully cured

A Record-Breaking Harvest with New Holland


LOCTITE 518 Gasket Sealant for Reliable, Leak-Proof Seals
Our best in class just got better - improved performance with new formulation

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