Gasketing sealants
High strength, heat-cured liquid 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.
- Description
- Technical specification
- Rating & reviews
- Question & answer
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.
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Repairable
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Low viscosity
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Chemical resistant
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Unaffected by thermal cycling
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Service temperature: 38°C to 700°C (100°F to 1300°F)
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Seals flanges carrying up to 2,900 psi steam
- Product category:
- Gasketing sealants
- Technologies:
- Specialties, others
- Application temperature:
- -40.0 °F - 1300.0 °F (-40.0 °C - 704.0 °C)
- Applications:
- For high temperature applications
- Color:
- Brown
- Cure type:
- Heat cure
- Gap fill, Unprimed:
- 40.0 mm
- Number of components:
- 1 part
- Storage temperature:
- 8.0 °C - 21.0 °C
- Viscosity:
- 48000.0 mPa·s (cP)
