st, ukwakheka kwezinto zayo kuqinisekisa ukuhlala ixesha elide: ityhubhu ye-PU (esekwe kwi-polyester) iqhayisa ngobunzima be-Shore A obuyi-95±2, obubonelela ngokumelana okuphezulu kokukrazuka, ukukrazula, kunye nefuthe—engcono kunezinye iindlela zerabha okanye ze-PVC ngokuphindwe ka-3-5 kwiimeko ezigugileyo (umz., ukuhambisa izinto ezi-granular ezifana nesamente okanye ingqolowa). Ukuqina kweplastiki okujikelezayo kususa imfuneko yeengcingo zesinyithi esinzima (ngaphandle kokuba kuchazwe) ngelixa kugcinwa ukuqina kwesakhiwo, okuvumela ipayipi ukuba imelane noxinzelelo oluhle ukuya kuthi ga kwi-10 bar kunye noxinzelelo olubi (ukufunxa) lwe--0.9 bar, okwenza ukuba ifaneleke zombini ukuhanjiswa kunye nokuphathwa kwezinto ezisekwe kwi-vacuum.
Okwesibini, inika ukuguquguquka okubanzi kokusingqongileyo: isebenza ngokuthembekileyo kumaqondo obushushu aqala kwi -40°C ukuya kwi 90°C (ngokunyamezelana kwexesha elifutshane ukuya kuthi ga kwi 120°C), ihlala iguquguquka nokuba kubanda kakhulu (ngokungafaniyo neepayipi ze PVC eziqinileyo) kwaye iyamelana nokuguquguquka kwiindawo ezishushu kakhulu. Ukongeza, uhlobo lokutya (oluhambelana nemigangatho ye-EU 10/2011 kunye ne-FDA) alunazo ii-phthalates, i-BPA, kunye neentsimbi ezinzima, nto leyo eyenza ukuba ikhuseleke ekudluliseleni ulwelo olutyiwayo (iijusi, iwayini, ubisi) okanye izithako zokutya ezomileyo—ezibalulekileyo ekulungisweni kokutya nasekwenziweni kweziselo. Ekusetyenzisweni kwimizi-mveliso, ibonisa ukumelana okuhle kweekhemikhali kwioyile, ii-asidi ezithambileyo, ii-alkalis, kunye nezinyibilikisi, ithintela ukubola kwiimeko zokusebenza ezinzima.
Okwesithathu, uyilo lwayo olujolise kumsebenzisi luphucula ukusebenza kakuhle: udonga lwangaphakathi olugudileyo kakhulu (iRa < 0.5 μm) lunciphisa ukulahleka kokungqubana, luqinisekisa ukuhamba kolwelo, iipowder, okanye iigesi ngaphandle kokuphazamiseka ngelixa luthintela ukwakheka kwentsalela (kwenza kube lula ukucoca nokunciphisa iindleko zokulungisa). Ulwakhiwo olukhaphukhaphu (≈30% lukhaphukhaphu kuneepayipi zerabha ezinobubanzi obufanayo) kunye nesakhiwo esijikelezayo esingashukumiyo sivumela ukujika, ukugoba, kunye nokujika kube lula—zilungele iindawo ezixineneyo (umz., umoya woomatshini, iindawo zeenjini zeenqanawa) okanye usetyenziso oluhambayo (umz., izitshizi zezolimo, iipompo zendawo yokwakha). Ubungakanani obunokwenziwa ngokwezifiso (ububanzi bangaphakathi: 25mm–300mm; ubukhulu bodonga: 0.6mm–2mm) kunye nokukhetha imibala (ecacileyo, emnyama, okanye eyenziwe ngokwezifiso) zilungele ngakumbi iimfuno ezithile, ukusuka ekudlulisweni kolwelo lwelebhu oluncinci ukuya ekuthuthweni kodaka olukhulu lwemigodi.