Loctite 567 Thread Sealant - 50g

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

Henkel lists LOCTITE 567 as providing immediate low-pressure sealing, with an operating temperature range of -55°C to +250°C.