Impuphu ye-resin ye-PTFE (i-polytetrafluoroethylene) — impahla eluhlaza yokwenza imikhiqizo ye-teflon. Iyi-polymer enokungqubuzana okuphansi kakhulu engasebenzisani namakhemikhali, esetshenziswa njengento eshelelisayo eyomile, njengesembozo esinganamatheli, nasemabheringi nasezivalweni.