O-Rings & Seals | HNBR
Hydrogenated nitrile is a synthetic polymer that results
from the hydrogenation of nitrile rubber (NBR). In this
process the molecular “double bonds” in the NBR primary
polymer chain undergo a hydrogenation process and therefore
the term “hydrogenated nitrile” (HNBR). The allowable
temperature range extends to 149°C (300°F) with short
periods at higher temperature possible. By following design
guidelines effective sealing can be achieved at -32°C
(-25°F) for static applications. For dynamic applications
however, operating temperatures are limited to above
-23°C (-10°F). HNBR compounds possess superior mechanical
characteristics, particularly their high strength.
For sealing applications up to approximately 159°C (300°F),
this is an advantage as it prevents extrusion and wear.
Please contact Customer Service.