LOCTITE 567 is a white, one-part, high-viscosity anaerobic thread sealant designed for sealing and locking tapered metal pipe threads and fittings. It is particularly suitable for coarse threads and stainless-steel fittings, where its high lubricating properties help prevent galling and make assembly easier.
LOCTITE 567 cures when confined between close-fitting metal surfaces in the absence of air. It provides an immediate low-pressure seal and helps prevent leakage and loosening caused by vibration and shock. Its low-strength formulation also facilitates subsequent disassembly when maintenance is required.
Key Features
One-part formulation – no mixing required
High-viscosity, thixotropic paste
Designed for tapered, coarse metal threads
Suitable for stainless steel, aluminium and other metal pipe threads
Excellent lubricating properties help reduce galling during assembly
Provides an immediate low-pressure seal
Anaerobic curing technology
Helps prevent leakage caused by vibration and shock
Oil tolerant and capable of tolerating minor surface contamination
Does not creep, shrink or block systems
Suitable for high-temperature applications
Operating temperature range: -55°C to +250°C
Available in various package sizes, including 50 ml and 250 ml configurations depending on market
Applications
LOCTITE 567 is designed for industrial pipe and thread sealing applications, particularly where reliable sealing of metal pipe fittings is required.
Typical applications include:
Hydraulic and pneumatic pipe fittings
Industrial fluid-processing equipment
Metal pipe connections
Stainless-steel fittings
Pumps and valves
Fluid power systems
Industrial maintenance and repair
Oil and gas equipment
Power-generation equipment
Automotive and industrial applications
Suitable Materials
LOCTITE 567 is recommended for:
Stainless steel
Aluminium
Steel
Galvanized steel
Other compatible metal pipe threads
It is particularly useful where stainless-steel fittings may be susceptible to galling during assembly.
How LOCTITE 567 Works
LOCTITE 567 is an anaerobic sealant. When applied to a threaded metal connection, the material remains liquid while exposed to air. Once the threads are assembled and the product is confined between close-fitting metal surfaces, exposure to oxygen is reduced and the sealant cures.
The cured material fills the microscopic gaps between mating threads, helping create a reliable seal while also resisting loosening caused by vibration and mechanical shock.
Application Method
Clean the threads: Remove dirt, oil and other contaminants. Henkel recommends suitable LOCTITE cleaners/degreasers for surface preparation.
Apply the sealant: Apply a continuous 360° band beginning approximately one to two threads from the leading edge, covering at least three thread roots.
Assemble the fitting: Assemble the threaded components to the required position.
Allow to cure: The sealant cures between the assembled metal surfaces. For passive metals such as stainless steel or aluminium, or at low temperatures, an appropriate activator may be used to accelerate curing.
Check the connection: Verify that the assembly is properly sealed before placing the system into service.
Technical Highlights
Property: LOCTITE 567
Product type: Anaerobic thread sealant
Form: Paste
Colour: Off-white / white
Components: One-part
Strength: Low
Thread type: tapered, coarse
Substrates: Metal, stainless steel, aluminium, steel
Cure: Anaerobic
Viscosity: Approx. 540,000 mPa·s at 20 RPM
Operating temperature: -55°C to +250°C
Breakaway torque, steel M10: Approx. 12 N·m
Primary applications: Pipe sealing and thread sealing