| abstract |
A composite is provided for forming a sealing strip for use in a suction roll of a papermaking machine or other device for maintaining a seal when brought into contact with a surface and that has extended usability and wear. The composite is a blend of a nitrile rubber, graphite, carbon black, and at least one of a silicone oil or polytetrafluoroethylene as a lubricating agent, optionally with a phenolic resin. The sealing strip has silicone oil and/or polytetrafluoroethylene evenly distributed over the contact surface, and when installed into a suction roll or other device, provides a reduced frictional surface. |