High strength, heat-cured liquid thread and flange sealant for high pressure applications
This 1-part heat-cured liquid sealant is designed for threads and flanges. Ideal for high temperature and high pressure applications.
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
- Technical specification
LOCTITE® NS 5540 is a brown, high strength, heat-cured liquid sealant for threads and flanges in high temperature and high pressure applications. The cured product won’t permanently join flanges together, better enabling any future repairs of metal-to-metal joints, and performs well under thermal cycling conditions. It has a top service temperature of 700˚C (1,300°F) and has been successfully used to seal flanges carrying up to 2900 psi steam. Typical applications include high temperature thread and flange sealing of steam, oils, hot air, and exhaust gases.
-40.0 °F - 1300.0 °F (-40.0 °C - 704.0 °C)
For High Temperature Applications
Gap fill, Unprimed:
Number of components:
8.0 °C - 21.0 °C
48000.0 mPa·s (cP)