Stock polytetrafluoroethylene (PTFE) shapes are available with specific properties for machining bearings, bushings, gaskets, seals, piston rings, and other wear components. JLON PTFE stock shapes are offered in five standard series that feature different fillers, including carbon, glass, polymer, bronze, mineral, graphite, and proprietary materials to achieve desired wear properties. They are supplied as molded or extruded rod with an outer dia. range of 0.125 in. to 8.0 -in., in tube form with an outer dia. range of 0.375 in.