Expanded PTFE Tape Expanded PTFE Tape is an inorganic sealant for static applications made of 100% PTFE. A unique process converts PTFE to a ... pipe systems, hydraulic and pneumatic system, etc. Expanded PTFE Tape Prime Features > Saves money and time > There is ... are no templates, precut or special fitting requirements. Expanded PTFE Tape Specification Media: Acids, alkalis, solvents, gases, etc. ...