LOCTITE® NS 5550 Extreme Temperature Sealant

Features and Benefits

A brown, thermally reactive fibrous paste sealing compound for high-temperature applications.
LOCTITE® NS 5550 is a brown, thermally reactive sealing compound, ideal for high-pressure and high-temperature applications up to 815°C (1500°F). When exposed to heat, it cures to form a seal. It will not permanently join the flanges together and will not interfere with future repairs of metal-to-metal joints.
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Technical Information

Applications For high temperature applications
Color Brown
Cure type Heat cure
Gap fill 162.0 mm
Operating temperature -40.0 - 1500.0 °F (-40.0 - 815.0 °C )
Viscosity, 20 RPM 2000000.0 mPa·s (cP)