Lo mhlahlandlela uhlanganisa ukukhetha kwetheyiphu ye-PTFE yokushisa ephezulu yokubumba umjovo kanye nezinhlelo zokusebenza zokulwa nezinti. Ukukhetha okusekelwe emazingeni okushisa: ≤260 ° C kumapulasitiki ajwayelekile (i-tape ejwayelekile ye-silicone ye-PSA, 0.13-0.18mm); I-260-300 ° C yepulasitiki yobunjiniyela bezinga eliphezulu lokushisa njenge-PC, i-PA66, i-POM (i-adhesive ye-silicone yezinga eliphezulu, i-0.18-0.25mm); 300-400°C ye-PEEK, LCP, PPS eduze nabagijimi abashisayo (itheyiphu yokunamathela ihluleka; sebenzisa indwangu ye-PTFE enganamatheli noma ifilimu ye-PFA). Ukukhetha okusekelwe ezintweni ezibonakalayo: izinto ezicashile zidinga ukukhishwa okuphezulu okuhlanzekile kwe-PTFE; izinto ezigcwele ingilazi/amaminerali zidinga itheyiphu engagugi engu-0.25mm+; izithasiselo ezonakalisayo zidinga ingcina ekwazi ukumelana namakhemikhali kanye ne-substrate eminyene; izinhlelo zokusebenza ezizwela i-static zidinga itheyiphu ye-PTFE ephikisana ne-static.

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 amise okwe-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.