Hi-tech Polymers offers Segmented Piston Rod Packing Polytetrafluoroethylene - PTFE Ring. Hi-tech Polymers supplies PTFE components for petrochemicals, refineries, fertilizers, power, marine, aerospace industries etc. Segmented Piston Rod Packing Polytetrafluoroethylene - PTFE Ring is a self lubricating material. The use of fillers with Segmented Piston Rod Packing Polytetrafluoroethylene - PTFE Ring changes certain properties and permits the material to be tailored to a wide variety of mechanical applications. In general, use of additives increases the stiffness, hardness, compressive strength and resistance to deformation under load of these rings. These rings are suitable for all types of non lubricated compressors.