PTFE ni polytetrafluoroethylene,izwi kandi nka Teflon (Teflon), ni ibikoresho byo kuyungurura imifuka murwego rwohejuruUbwoko bwa.Umufuka wa PTFE kugirango urwanye ibihe byangirika, serivisiubuzima bwiyungurura ibintu bisabwa ibihe.