Indwangu eqinile ye-PTFE yezinga lokushisa eliphezulu yenziwa ngokunamathisela i-PTFE phezu kwendwangu ye-fiberglass enamandla amakhulu, enikeza amandla aqinile, ukumelana nokushisa, izakhiwo ezingabambeki, ukumelana namakhemikhali, nokungqubuzana okuphansi. Izicelo ezimqoka zihlanganisa: ukuthunyelwa kwezimboni (ukupakishwa kokunciphisa ukushisa, ukubhaka ukudla, okomisa izindwangu, ukomisa amaphepha/ifilimu); indwangu yokubumba ehlanganisiwe kanye nama-cushion liners ashisayo; amakhethini okuvikela amakhethini kanye namajakhethi okushisa ashisayo; motor kagesi kanye transformer insulation; ukwakha ama-sliding bearings nezisekelo zamapayipi; ukuhlunga kwamakhemikhali kanye nokuvala ama-valve ezindaweni ezigqwalile. Amandla aqine kakhulu aqinisekisa ukuqina ngaphansi kwengcindezi, ukudabuka, ukuguquguquka okuphindaphindiwe, kanye nengcindezi yemishini yezinga eliphezulu lokushisa kuzo zonke lezi zinhlelo zokusebenza ezisindayo ezihlukahlukene.

Ngesikhathi sokucwiliswa, izinhlayiya ze-PTFE endwangu ye-fiberglass zincibilika ngaphezu kuka-327°C, zicekela phansi i-lamellae egoqiwe yoqobo kanye nemingcele yezinhlayiyana ukuze zenze ukuncibilika kwe-amorphous. Lapho ipholisa, i-PTFE iphinda icwebe ibe ngama-spherulites akhiwe ama-lamellae anama-radially, anobukristalu obusukela ku-50–70%. Izinga lokupholisa linquma ukuphelela kwekristalu: ukupholisa kancane kukhiqiza icrystallinity ephakeme, ama-spherulite amakhulu, ubulukhuni obukhulu; ukucisha ngokushesha kunikeza ama-spherulites amahle kanye nokuguquguquka okuthuthukisiwe.