Threaded connections are widely used to connect pipework in pressure systems, thus sealing is essential. The most widely used liquid thread sealant in the automotive repair are anaerobic products. We will show here a repair with a sealing cord.

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The pipe sealing cord used in our instruction is a non-curing coated multifilamen cord that seals out air and other common gases and fluids. It can be used for leaking pipes or other pressure systems inside the workshop (not in a vehicle!).  It needs no cure time and results in an immediate, full pressure seal. 

All repair and maintenance tasks shown should be done by professionals only. Please do not try this at home or if not qualified by professional education. Always follow car manufacturer's instructions.
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Clean threads with LOCTITE® SF 7063 and, if necessary, roughen smooth threads.



Wind LOCTITE® 55 sealing cord onto the pipe thread in the same direction as the thread, starting from the end of the pipe. Avoid covering the first thread turn, this allows easier fitting of the pipes. See label for recommended number of wraps; apply in cross-cross pattern. Cut off cord.



Assemble the pipes as per accepted trade practice. An adjustment of 45° is possible after tightening. Parts can be re-used without any rework. Open the joint, remove old sealant using e.g., apply fresh sealant and retighten properly.

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Limitation of Liability

The information provided herein, especially recommendations for the usage and the application of our products, is based upon our knowledge and experience. Due to different materials used as well as to varying working conditions beyond our control we strictly recommend to carry out intensive trials to test the suitability of our products with regard to the required processes and applications. We do not accept any liability with regard to the above information or with regard to any written or verbal recommendation, except if otherwise explicitly agreed and except in relation to death or personal injury caused by Henkel´s gross negligence or intention and any liability under any applicable mandatory product liability law. Please note that the information provided by us may not be current, complete and correct. It is not intended to serve as legal advice. Each user is solely responsible for assessing and ensuring compliance with any applicable law. The information is protected by copyright. In particular, any reproductions, adaptations, translations, storage and processing in other media, including storage or processing by electronic means, enjoy copyright protection. Any exploitation in whole or in part thereof shall require the prior written consent of Henkel Corporation. Except as otherwise noted, all marks used in this sell sheet are trademarks and/or registered trademarks of Henkel and/or its affiliates.