Henkel Adhesive Technologies

Henkel Adhesive Technologies

Gasketing solutions

Gaskets are used to prevent leakage of fluids or gases by forming impervious barriers. For successful gasketing, it is necessary that the seal must remain intact and leak-free over a long period of time. The gasket must be resistant to fluids and/or gases, and withstand the operating temperatures and pressures to which it is subjected. LOCTITE® gasketing products are self-forming gaskets that provide a perfect seal between components, with maximum face-to-face contact, eliminating flange face corrosion. A low-pressure seal is formed immediately on assembly. At full cure it provides a seal that won’t shrink, crack or relax.
A red tube of LOCTITE 518 is applying a thing red bead of liquid gasket sealant to the flange of a gearbox.
A group of pipes connected with valves and fittings with a tube of LOCTITE 567 rested on top of the pipes.

Explore liquid gasket products

LOCTITE gasketing products are available in various formulas to cater to a broad array of industrial applications, from manufacturing new products to a wide range of in-plant maintenance and repairs. Visit our e-Catalog to explore all the different types of gasket sealants available.

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100%

Surface contact

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Unlike pre-cut gaskets, LOCTITE liquid gasketing products fill all voids.

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1,000's

Hours reduced

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In unplanned downtime through the prevention of leaks.

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>1M

Flanges sealed

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With LOCTITE gasketing products, improving the reliability of industrial equipment.

Cut gaskets leak. We seal.

Suited for a wide range of applications, LOCTITE gasket sealants can be formed in place and increase the reliability of flanged assemblies. They reduce inventory complexity and prevent leaks that lead to product failures and costly downtime. Watch the video to learn more.

A blue pump with a flange that is assembled in an industrial setting.

Simple gaps cause pre-cut gaskets to leak

Pre-cut compression gaskets can have major failure and leakage, which can lead to decreased product reliability and unplanned downtime. The major causes of these failures are:

  • Surface contact: Compression gaskets do not provide total contact between the gasket and the flange surfaces. Therefore, minor leakages may occur (weeping rate). 
  • Compression set: Compression gaskets relax under dynamic loads and decrease in thickness, with subsequent loss of bolt tension in the flange joint resulting in leakage. 
  • Extrusion: Gaskets can be squeezed out between flanges. 
  • Bolt hole distortion: High stresses are transferred to the gasket material under the bolt head, causing the gasket to crack, tear, rupture or extrude.

LOCTITE liquid gaskets are the answer

Gaskets are used to prevent leakage of fluids or gases by forming impervious barriers. For successful gasketing, it is necessary that the seal must remain intact and leak-free over a long period of time. The gasket must be resistant to fluids and/or gases, and withstand the operating temperatures and pressures to which it is subjected. LOCTITE® liquid gasketing products are self-forming gaskets that provide a perfect seal between components, with maximum face-to-face contact, eliminating flange face corrosion. A low-pressure seal is formed immediately on assembly. At full cure it provides a seal that won’t shrink, crack or relax.

In the foreground, a tube of LOCTITE 518 is dispensing a line of liquid gaskets. In the background several wrenches of various sizes rests on a piece of metal.

LOCTITE liquid gaskets vs.

conventional methods

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LOCTITE vs. manually cut paper gaskets

Manually cut paper gaskets demand immense time and skill during installation process, yet do not completely fill the gaps which LOCTITE gasketing products can.

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LOCTITE vs pre-cut gaskets

Pre-cut gaskets require different parts for different flanges, yet still have inconsistent surface contact. LOCTITE gasketing products can help solve for this.

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LOCTITE vs O-rings

O-rings have common misalignments during placement, leaving room for gaps that LOCTITE gasketing products do not.

Why choose LOCTITE gasketing solutions?

Eliminate compression set

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No cracking and relaxation overtime.  No need for frequent tightening of flange bolts.

Create unitized flange

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No side-to-side movement of flange or gasket. Stable bolt tension due to the elimination of a third element.

Extend product service life

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Reliable seals prevents equipment damaging leaks.

Seal 100%

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An impenetrable gasket seals the process fluid inside while preventing corrosion of the flanges.

Reduce inventory cost & complexity

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One tube of gasket seal can make various shapes and sizes of gaskets.

Automate easily 

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Can be applied with automated dispense equipment in production settings.

Choosing a LOCTITE liquid gasket

Our products are available in many different formulations to cater to a broad array of applications. LOCTITE® gasket solutions are available as anaerobic liquid gaskets for rigid machine flanges and silicone liquid gaskets for flexible or stamped flanges.

Explore our LOCTITE® gasketing products and find the one that is right for your application. For more specialty products, contact us.

In the foreground, a tube of LOCTITE 518 flange sealant rests on top of a large industrial pipe with a matted flange in the background.
A person holds a tube of LOCTITE 518 gasket sealant as it dispenses a line of gasket sealant onto a flange.

Rigid machined flanges

Rigid, machined flange surfaces typically are designed for no gap, allowing for metal-to-metal contact. For these assemblies, anaerobic liquid gaskets are the best choice because they provide the highest strength seal.

LOCTITE 518 is a medium-strength, general purpose gasketing product with excellent contamination tolerance. Ideal for use on cast iron, steel and aluminum flanges.

  • 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
A white tube of LOCTITE SI 5910 is applying a thin black bead of silicone liquid gasket sealant to a metal flange.

Stamped or flexible flanges

Typically thinner, stamped metal flanges can have larger gaps that need to be filled. They are also subject to more flex in service. For these types of assemblies, silicone liquid gasketing products provide the best seal.

LOCTITE SI 5910 is a low strength gasketing product for flexible flanges that has good resistance to oil and joint movement.

  • Good resistance to oil and joint movement
  • Can be supplied in cartridges, tubes or pressurized cans
  • For use with flexible flanges
  • Reduces migration of liquid after application

Resources

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