Ifilimu yokwelula, eyaziwa nangokuthi i-stretch wrap noma i-pallet wrap, iyinto yokupakisha eguquguqukayo kakhulu futhi esebenza kahle esetshenziswa kabanzi ezimbonini ezahlukahlukene ukuvikela, ukuvikela, kanye nokwethula izimpahla. Yenziwe ngokuyinhloko nge-polyethylene (PE), ifilimu yokwelula ibonakala ngesimo sayo sokwelula kanye nekhono lokuhambisana nezimo nobukhulu obuhlukahlukene. Ifilimu yokwelula ingalulwa kuze kufike kumaphesenti amaningana ubude bayo bokuqala, okuvumela ukuthi igoqe kahle izinto ezibunjwa nobukhulu obuhlukene. Le mpahla yokwelula iqinisekisa ukulingana okuhle, okunikeza ukuvikelwa okuhle kakhulu kanye nokuqina. Ngamandla aphezulu okudonsa, ifilimu yokwelula ingamelana nezingcindezi ezinkulu zangaphandle, ivimbele izimpahla ukuthi zingagudluki noma zonakale ngesikhathi sokuthuthwa nokugcinwa.
| Ububanzi Bokujiya | Amandla Okuqina (I-Longitudinal Lateral) | Ukwelulwa ngesikhathi sokuphumula (i-Longitudinal Laterial) | I-Angel Tear Strenth (I-Longitudinal Laterial) | Ikhono Lomthelela noma i-Pendulum | Ukungakhathali | Izinga Lokudlulisa Ukukhanya (Kucacile) | Ubuningi bexoxo (Ifilimu Ecacile) |
| I-Micron | I-Mpa≥ | %≥ | N/mm≥ | J≥ | N/cm≥ | %≥ | %≤ |
| 15-17 | 37 | 350,500 | 120 | 0.14 | 3 | 93 | 2.4 |
| 18-20 | 38 | 400,600 | 120 | 0.15 | 3 | 92 | 2.5 |
| 21-25 | 39 | 400,600 | 120 | 0.17 | 3 | 91 | 2.6 |
| 26-30 | 40 | 400,650 | 120 | 0.19 | 3 | 90 | 2.7 |
| 31-35 | 41 | 450,700 | 120 | 0.21 | 3 | 89 | 2.8 |
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