ptfe packing PTFE packing is made from 100% PTFE filament yarn. It is applied in a wide range of expansion joints, valves, pumps, and chemical compounds in food processing, pharmaceuticals, paper industries where high purity and corrosion resistance are required. It resists attacks from almost all chemical compounds (except cast alkaline metals and gaseous fluorine) and is used in alternative and rotary motion shafts operating at low peripheral speed, rods, piston valve stems, and expansion joint

PTFE packing seal