The Loctite brand is the first brand to propose anaerobic technology and has many years of experience in cooperating with various industries, which is why it is widely recommended.

Every year, more than 1 billion gallons of industrial fluids are wasted due to leaks. In addition to losing the value of fluids and gases, leaks also affect toxicity, emissions, safety, pollution and personnel, as well as additional costs for locating, diagnosing, and repairing leaks in the pipeline system.

The main cause of this leakage can be traced back to the gap between the male and female threads of the pipe joint. Although there is a set standard for uniform accessories, pipe threads are usually inaccurate, and there is no specified installation torque, which leads to thread damage. For a long time, PTFE tape has been the preferred solution to solve the leakage problem, but they will break and create a leakage path during the tightening process, which affects the reliability of the seal. Thread sealant based on anaerobic technology is an excellent solution.

● What is anaerobic thread sealant and how does it provide 100% metal-to-metal contact?

Thread sealant based on anaerobic technology improves strength by curing in the absence of air and metal ions. Due to their liquid state, they fill all gaps between pipe threads before curing to form a tough thermoset plastic, providing a leak-free seal.

There are many brands on the market that provide thread sealants. The Loctite brand is the first brand to propose anaerobic technology and has many years of experience in cooperating with various industries, which is why it is widely recommended.

● How to choose the right thread sealant for your application?

You can choose the right thread sealant by answering the following questions about the pipe joints to be sealed:

● Is the tube made of metal or plastic?

Metal threads can be effectively sealed with anaerobic liquid thread sealant. Depending on whether the metal is copper, brass, steel or aluminum, the viscosity of the paste to be selected will vary. If you need to seal plastic threads, please use thread seals that can be sealed immediately.

● Is the thread of the pipe joint thick or thin?

Coarse threaded pipe joints have fewer threads per axial distance, so high-viscosity thread sealant is more suitable for them, while fine threads have more threads per axial distance. Therefore, it is recommended to use low-viscosity thread sealant so that liquid can quickly fill all gaps.

● What is the size of the pipe thread that needs to be sealed?

For pipe threads up to ¾ inches in diameter, low-viscosity thread sealants are preferred. If the pipe thread diameter is 2 to 3 inches, the performance of the thread sealant will be better. If the pipe joint has a larger diameter (maximum 4 inches), use a threaded sealing rope.

● What is the required operating temperature?

Thread sealants based on anaerobic technology can usually withstand temperatures between -55oC and 150oC, which is ideal for most hydraulic and pneumatic pipelines. Depending on specific requirements, some thread sealants can also withstand higher temperatures.

The following are some of the popular products offered under the Loctite product portfolio:

● LOCTITE 542 is a low-viscosity thread sealant, very suitable for copper/brass hydraulic and pneumatic joints

● LOCTITE 567 is a high-viscosity thread sealant, suitable for coarse threaded joints, and also suitable for stainless steel and aluminum

● LOCTITE 55 is a thread sealing line, very suitable for sealing pipe threads and overhead applications

Replacing PTFE tape with a liquid thread sealant for the first time seems challenging because it takes some time to adapt to the product name and selection criteria. We hope that the above methods can help you choose the thread sealant that suits your requirements. If you have any questions, you can also contact a brand representative for clarification. For example, Loctite provides supplementary technical consultation, which you can request here. After you choose, you can implement it during the entire product use process after you test the product on several pipe joints and successfully try it out after at least 15 to 30 minutes of application.

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