Isivalo senjoloba siyingxenye ebalulekile yezinto zokuvala amabhodlela ekufakweni kwezidakamizwa, ikakhulukazi okuhlanganisa irabha yemvelo nerabha ye-butyl.Emlandweni wemithi yezwe lethu, isikhathi eside -: ipulaki yenjoloba yemvelo enefilimu ye-polyester isetshenziswe ngokuqondile.Ipulaki yenjoloba yemvelo ngokwayo inezakhiwo ezinhle kakhulu zomzimba kanye nokumelana ne-chip.