Izikhwama zokufaka uphawu ezisemaceleni zenziwe ngezinto zepulasitiki ezinomgoqo, ukubekezelela ukushisa nokubekwa uphawu. Ingakwazi ukuvimbela ukubola kokudla, ivimbele i-oxidation yamavithamini ekudleni. Ngokuvamile khetha inhlanganisela yepulasitiki enezingqimba eziningi, okuvamile okuhlanganisa i-PET/AL/PE, PET/NY/PE, PET/MPET/PE, PET/AL/PET/NY/AL/PE, PET/NY/AL/RCPP, izinga lokushisa eliphezulu isikhwama esomile se-distillation ukudla okumanzi, njll. Ifilimu yepulasitiki eyinhlanganisela ye-co-extrusion, izohlanganisa ucwecwe lwe-aluminium, ngoba isikhwama sokupakisha se-aluminium foil sinesithiyo esihle. Vimba umoya, vimba ukukhanya kwelanga, vimba uwoyela, vimba amanzi, cishe zonke izinto azikwazi ukungena; Isikhwama se-Aluminium foil sinokuqinile komoya; Ukufakwa kwe-aluminium foil kune-shading evelele, kodwa futhi kunokumelana okuhle kawoyela nokuthambile. Ibukeka isezingeni eliphezulu futhi igqamile, inomphumela omuhle wokuvala uphawu. Umlomo wesikhwama ungavalwa kalula, usetshenziswe kalula futhi ungenza umkhiqizo ngaphakathi ungathinteki kalula umswakama.