I have had success with Torlon 4301 in a valve sealing application. It is a compressive and impact load, cycling many million times before failure. Kel-F is used frequently in valves and has good sealing qualities.
I am looking to incorporate a small and inexpensive visual indication into an existing product. The problem we have been having is that even though we require nitrogen on this instrument, customers occasionally connect CDA or (DWA- dirty wet air). We need to have the indication to be able to...