Lipampiri tsa PET li sebelisoa haholo joalo ka lisebelisoa tsa ho paka tse sebetsang hantle haholo, empa bofokoli e ka ba bothata bo atileng tlhahisong. Sengoliloeng sena se hlahloba lisosa tse ka sehloohong tsa PET sheet brittleness, ho kenyelletsa kalafo e feteletseng ea mocheso, ho senyeha ha li-additives, maemo a sa nepahalang a polokelo, le litaba tse mabapi le ts'ebetso ea tlhahiso. E boetse e fana ka mehato ea thibelo, e kang ho laola phekolo ea mocheso, ho eketsoa ka mokhoa o nepahetseng oa li-additives, ho ntlafatsa maemo a polokelo, le ho latela mekhoa e nepahetseng ea tlhahiso, ho netefatsa boleng bo tsitsitseng ba maqephe a PET. Ho utloisisa le ho laola lintlha tsena ho ka thusa bahlahisi ho hlahisa maqephe a PET a tšoarellang le a tsitsitseng.
