Lesela la PTFE la mocheso o phahameng le fana ka khanyetso e ikhethang ea lik'hemik'hale, le mamella li-acid tse matla, alkalis, solvents organic, le likhase tse senyang. Sengoliloeng sena se qaqisa lintho tsa sona tse hanyetsanang, mefokolo (metaele ea alkali e qhibilihisitsoeng, lisebelisoa tse matla tsa fluorinating), le lintlha tsa bohlokoa joalo ka mocheso, khatello ea maikutlo le khatello ea maikutlo.

PTFE impregnation ha e felle feela ho fiberglass lesela. Sengoliloeng sena se hlahisa li-substrates tse 7 tse ling - aramid, carbon fiber, PBI, porous metal, graphite, asbestos (phased out), le li-filler tsa ceramic - ka likarolo tsa bona tsa ts'ebetso, melemo, mefokolo, le lits'ebetso tsa bohlokoa.

Sengoliloeng sena se hlalosa hore na ke hobane'ng ha lesela la fiberglass e se nang alkali e le eona substrate e ratoang bakeng sa lesela la mocheso o phahameng oa PTFE. E akaretsa maqhama a lik'hemik'hale ka li-silane coupling agents le thepa ea bohlokoa ea 'mele joalo ka botsitso ba mocheso, botsitso ba sebopeho, le ho hanyetsa kutu - ho netefatsa ts'ebetso e tšoarellang halelele libakeng tse thata.