Makina a pepala a PET ali ndi mawonekedwe amphamvu kwambiri, kukana kutentha kwabwino, kulimba kwabwino, kutha kwapamwamba, komanso kukonza kwachiwiri kosavuta. Itha kudzazidwa, kulimbitsa, kulimba, kuuma, kuletsa moto, kusinthidwa, ndipo pamwamba pake imatha kusindikizidwa ndi kuzizira.