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How to Remove Red Threadlocker

Red threadlocker, a powerful adhesive used to secure threaded fasteners, is well known for its formidable strength once cured. When disassembly is necessary, removing red threadlocker can be a daunting task. However, with the right approach and tools, it’s entirely achievable. In this guide, we’ll delve into the techniques and precautions to effectively remove red threadlocker, ensuring smooth disassembly processes.


Understanding Red Threadlocker

Loctite red threadlocker is designed for permanent or semi-permanent applications where exceptional strength is required. Its anaerobic adhesive properties form a strong bond between threaded fasteners and prevent them from loosening due to vibrations and shocks. However, when it comes to disassembly, the same robustness can pose an insurmountable challenge if not handled properly. Once cured, red threadlocker resists conventional solvents due to the minimal surface area for the solvent to penetrate. Therefore, relying on solvents for removal is ineffective.


The Solution: Applying Heat

The only effective way to remove red threadlocker involves the application of localized heat exceeding 250°C. This elevated temperature breaks down the adhesive bond, allowing for disassembly without damaging the fastener or surrounding components.

Here’s how to proceed:

  1. Preparation: Before applying heat, ensure safety precautions are in place. Wear protective gear such as heat-resistant gloves to shield against potential hazards. Additionally, clear the work area of any flammable materials to prevent accidents.
  2. Heat application: Use a heat source capable of generating temperatures above 250°C, such as a propane torch or heat gun. Direct the heat onto the head of the fastener and hold it in place for about two minutes.
  3. Disassembly: Once the threadlocker has softened, use appropriate tools to loosen the fastener. A wrench or socket set matched to the fastener size is recommended. Apply steady, controlled force to unscrew the fastener, taking care not to strip the threads.


Removing Threadlocker Residue

Once the bolt is successfully removed, it’s essential to clean any threadlocker residue from the threads if the fastener needs to be reused. You can soak the bolt in products such as Loctite SF 790 Chisel Paint Stripper to soften cured threadlocker. Then, use a wire brush to mechanically remove the remaining threadlocker residue from the threads. For female threads, a tap can be used to clear the threads instead. Make sure to clean the bolt thoroughly: any leftover adhesive can compromise the application of the new threadlocker and lead to improper fastening.


Removing Loctite red threadlocker requires a systematic approach, with localized heat exceeding 250°C being the cornerstone of the process. By following the steps outlined in this guide, you can effectively remove red threadlocker, disassemble your fasteners and get them ready for future use. All without compromising safety or integrity.


At Conro Electronics, we’ll show you how to improve product reliability while increasing performance and lowering costs. Our team of technical support specialists will provide your company with dependable global supply, unrivalled efficiency, and superior technical support.

Feel free to contact us on 0208 953 1211 or send us an email to

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