Liner (Pipe Clamp)
Any soft, gasket-type, or belting material used on the inside of a pipe clamp to firmly grab and hold a pipe in place once the clamp bolts have been properly tightened. Some commonly used materials for pipe clamp liners are Fabreeka, Viblon, polytetrafluoroethylene (PTFE) bonded to Fabreeka, PTFE bonded to Viblon, solid PTFE, and polyvinyl chloride.