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Henkel Adhesive Technologies

Henkel Adhesive Technologies

Thread sealing solutions

LOCTITE® thread sealants are reliable, so your operations are unstoppable. They offer a dependable and cost effective method to seal pipe joints and prevent potential leakages.
A tube of LOCTITE 567 sits on a table while two hands in gloves hold a pipe joint put together with LOCTITE thread sealants.
A group of pipes connected with valves and fittings with a tube of LOCTITE 567 rested on top of the pipes.

Explore thread sealants

Our products are available in a wide range of formulas to cater to a broad array of industrial applications, from manufacturing new products to maintaining and repairing in the plant. These different thread sealants cover applications on metal, plastic, and hydraulic applications. Visit our e-Catalog to explore all the different types of thread sealants available.





Thread sealants fill the air gaps between threads, preventing leakage of gases and liquids.




Hours reduced

In unplanned downtime by using thread sealing solutions to eliminate leaks.




Pipe joints sealed

With LOCTITE thread sealants preventing costly chronic failures.

Seal out leaks. Seal in productivity.

With conventional thread sealing methods, pressurized fluids and gas leaks can cause costly downtime. By using LOCTITE thread sealants, joints are able to withstand burst pressure rating of most piping systems, preventing pipe failure. Watch how LOCTITE thread sealants eliminate leaks to enhance the reliability of your products & equipment.
A series of pipes put together with threaded fittings in an industrial setting.

Leaks cause downtime

Leaks are a significant and common problem for manufacturing and maintenance professionals. While a certain amount of leakage might have been acceptable in the past, leaks are no longer tolerated in today’s marketplace. Conventional thread-sealing methods can leak and ruin piping systems, which leads to downtime and increases costs.

LOCTITE® thread sealants are the answer

LOCTITE thread sealants are the preferred solution for many different applications across industries to secure threaded pipes, hydraulic systems, and other connections from fluid leaks. Reliable thread sealing is achieved as the anaerobic thread sealant cures in the absence of air and contact with metal surfaces creating a more reliable fit compared to conventional methods. Thread sealants are ideal for preventing leaks caused by vibration, changing pressures, or changing temperatures. They are the ideal solution to preventing leaks in industrial maintenance and assembly applications due to their ease of application and quick cure times.

In the foreground, a bottle of LOCTITE 545 rests on a metal pedestal. In the background is a device with pneumatic tubes, valves, and gauges behind it.

LOCTITE® thread sealants vs.

conventional methods

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LOCTITE® vs. thread tape

The lubricating properties of thread tape may allow for closer fitting of threaded pipe joints. However, it does not eliminate all the gaps which LOCTITE can fill completely.

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LOCTITE® vs. thread paste

Pipe thread paste dries up to form a seal between pipe joint threads. However, it shrinks while drying and may not fully eliminate the gaps which LOCTITE can fill completely.

Why choose LOCTITE® thread sealing solutions?

Seal reliability

Seals up to the burst strength of most pipe systems.

Outperforms thread tapes and pastes

Allows for joint adjustment post application. Does not clog or contaminate lines.

Prevent galling & corrosion

Protects threads from corrosion and controlled lubricity prevents galling.

Allow disassembly

Low and medium strength thread sealants allow disassembly with standard hand tools.

Have excellent durability

Compatible with a wide range of fluids, chemicals, and solvents.

Are versatile and user friendly 

Variety of packaging and formulas to fit any application need.

Choosing a LOCTITE® thread sealant

Our products are available in many different formulations to cater to a broad array of applications. LOCTITE thread sealants are available in liquids, paste, and semi-solid forms for use on metal and plastic.

Explore our LOCTITE thread sealant products and find the one that is right for your application. For more information on our entire LOCTITE thread sealant portfolio and specialty products, contact us.

Several LOCTITE thread sealing products sit on a workbench in a maintenance workshop.
LOCTITE 567 is being applied to threads of a plumbing fitting in an industrial setting

Metal parts

For metal threaded connections, general-purpose thread sealants such as LOCTITE 567 are recommended. 

LOCTITE 567 is an off-white, UL approved, low disassembly strength methacrylate thread sealant.

  • Single component - clean and easy to apply
  • Doesn’t creep or shrink
  • Provides an instant low pressure seal
  • Thixotropic and high/very high viscosity
  • UL approved
A bottle of LOCTITE 545 sits on a table while two hands in gloves hold a pipe joint put together with LOCTITE thread sealants.

Hydraulic fittings

LOCTITE 545 is recommended for fine threaded fittings as used in hydraulic and pneumatic installations. 

  • High lubricity for easy assembly and removal
  • Contains no fillers or particles that could contaminate system fluids, foul valves, or clog fine filters and screens
  • Excellent solvent resistance
  • American Bureau of Shipping approved
A can of LOCTITE MR 5438 sits on a black work bench inside of a maintenance workshop.

Plastic parts

When sealing plastic pipes or pipe fittings common in irrigation, pump, well, and swimming pool industries, LOCTITE MR 5438 is recommended.

  • Ideal for irrigation, pump, well and swimming pool industries
  • Designed for the sealing of threaded plastic pipes and fittings


Mentioned products

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