Permabond MH052 – anaerobic thread sealant for metal threaded pipe joints

Permabond MH052 is a high-performance anaerobic thread sealant for sealing metal threaded pipe joints in demanding industrial applications. The product is particularly relevant for liquid-cooled systems in data centers and other mission-critical installations where leak prevention, chemical resistance and long-term operational reliability are essential.

Permabond MH052 – anaerobic thread sealant for metal threaded pipe joints

Permabond MH052 is a high-performance anaerobic thread sealant for sealing metal threaded pipe joints in demanding industrial applications. The product is designed to create a reliable seal against gas, water, LPG, hydrocarbons, oils and other chemicals, and is particularly relevant in systems where leakage can lead to downtime, equipment damage or costly production interruptions.

MH052 is used in applications such as liquid-cooled data center systems, industrial cooling systems, process piping, gas installations and other mission-critical pipe systems where sealing performance, chemical resistance and long-term operational reliability are crucial.

Thread sealing for liquid-cooled data centers and industrial pipe systems

In modern data centers, the need for efficient cooling is increasing. Liquid-cooled systems place high demands on pipe connections, as even minor leaks can affect operational reliability. Permabond MH052 is designed for sealing pipe connections in liquid cooling systems and quickly forms a low-pressure seal before curing into a chemical-resistant polymer.

The product helps prevent leakage even in environments where pipe joints are exposed to vibration from pumps and mechanical equipment, pressure variations, shock and normal contamination from installation and construction environments. This makes MH052 particularly suitable for data centers, technical installations and other applications where uptime and operational reliability are critical.

Alternative to PTFE tape, hemp and traditional pipe sealants

Permabond MH052 can be used as an alternative to PTFE tape, hemp or other traditional thread sealing solutions. Unlike tape or fibrous sealing materials, MH052 does not shred or dry out. This reduces the risk of loose particles entering the system and contributes to a more durable seal over time.

The product is applied directly to the external thread and cures inside the enclosed metal joint. Excess material outside the joint remains uncured because it is exposed to air, while the material inside the threaded joint cures and forms a tight, chemical-resistant seal.

Developed for metal threaded joints and stainless steel

MH052 is intended for sealing threaded metal joints and performs very well on stainless steel. The product has a high viscosity and is suitable for thread sizes up to M56, equivalent to 2 inches, with a maximum gap fill of 0.5 mm.

Because stainless steel and other passive metals can affect curing speed, an activator such as Permabond A905 or ASC10 can be used to reduce cure time when required. Correct pre-treatment, cleaning and application are important factors in ensuring a reliable seal in the specific application.

Benefits of Permabond MH052

Permabond MH052 combines technical performance with easy application. The product provides very good chemical resistance, seals up to the burst pressure of the pipe and does not form loose particles that may clog valves or sensitive components in the system.

MH052 is also PFAS-free and has UV fluorescence, making it possible to inspect application with UV light. The product is available in practical packaging options for both precision application and larger installation volumes.

Typical applications

Permabond MH052 is used in applications where metal threaded joints need to be sealed against liquids, gases or chemicals. Typical applications include:

  • thread sealing in liquid-cooled data centers
  • sealing of liquid cooling systems
  • thread sealing in industrial cooling systems
  • sealing of metal threaded pipe joints
  • sealing of stainless steel pipe connections
  • sealing against water, gas, LPG, oils and hydrocarbons
  • thread sealing in systems exposed to vibration
  • sealing of process piping and technical installations
  • applications where PTFE tape or hemp is not optimal
  • sealing in mission-critical systems where leakage must be prevented

Technical properties at a glance

Permabond MH052 is an acrylic-based anaerobic thread sealant with a yellow colour and UV fluorescence. The product has a viscosity of 65,000 mPa·s at 2 rpm and 25,000 mPa·s at 20 rpm. It is intended for thread sizes up to M56 / 2 inches and has a maximum gap fill of 0.5 mm.

At 23 °C, MH052 reaches handling strength on M10 steel after approximately 15 minutes, working strength after 1–3 hours and full cure after 24 hours. The product has a shear strength of 10 MPa on steel and a service temperature range from -55 to +150 °C.

Approvals and compatibility

Permabond MH052 has DVGW Approval for Gas, WRAS Drinking Water Approval and is KTW-BWGL Drinking Water Compliant. The product is also approved for use with gaseous oxygen under the specified conditions.

As with all technical adhesive and sealing applications, the product should be tested under actual operating conditions to ensure that it is suitable for the materials, media, temperature, pressure and production process in the specific application.

The right thread sealant starts with the application

The choice of thread sealant depends on material, thread type, gap, temperature, pressure, media, cleaning, cure time and assembly process. G A Lindberg helps you select the right Permabond product based on your technical requirements and production conditions.

Contact us for advice on Permabond MH052 and other solutions for sealing metal threaded pipe joints in demanding industrial environments.


Frequently asked questions about Permabond MH052

What is Permabond MH052 used for?

Permabond MH052 is used for sealing metal threaded pipe joints in applications such as liquid-cooled data centers, industrial cooling systems, gas installations, process piping and other technical installations where a chemical-resistant and vibration-resistant seal is required.

Can MH052 be used in liquid-cooled data centers?

Yes, MH052 is particularly relevant for sealing pipe connections in liquid cooling systems in data centers. The product helps prevent leakage in mission-critical cooling systems where operational reliability is essential.

Is Permabond MH052 an alternative to PTFE tape?

Yes, MH052 can be used as an alternative to PTFE tape, hemp and other traditional pipe sealing solutions in metal threaded joints. The product does not shred or dry out, which contributes to a durable seal and reduces the risk of loose particles entering the system.

Does MH052 work on stainless steel?

Yes, MH052 performs very well on stainless steel. Because stainless steel is a passive metal, curing speed may be affected, and an activator can be used when required to reduce cure time.

Which media does Permabond MH052 seal against?

MH052 seals against gas, water, LPG, hydrocarbons, oils and other chemicals. The product has very good chemical resistance and is designed for demanding pipe sealing applications.

Is MH052 PFAS-free?

Yes, according to the product information, Permabond MH052 is PFAS-free.

Which approvals does Permabond MH052 have?

Permabond MH052 has DVGW Approval for Gas, WRAS Drinking Water Approval and is KTW-BWGL Drinking Water Compliant. The product is also approved for use with gaseous oxygen under the specified conditions.

How is Permabond MH052 applied?

MH052 is applied as a continuous bead around the circumference of the external thread, normally one to two threads back from the leading edge. To achieve a complete seal, a sufficient amount of product should be applied where the threads are fully engaged. The components are then tightened using appropriate tools, and the product should be allowed to cure before the system is put into operation.

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PERMABOND MH052 Anaerobics