Substrate yimbaraga zometseho ibyuma bikozwe muri zinc-aluminium-magnesium (ZM).Hishimikijwe tekinoroji gakondo ya galvanizing, igice runaka cya aluminium na magnesium byongewemo kugirango bibe zinc-aluminium-magnesium alloy coating.Imiterere ya eutectic irimo aluminium na magnesium ikorwa muri coating, iteza imbere neza kwangirika kwangirika no guhangana nikirere.Ifite imikorere yihariye yo kwikiza gukata, gushushanya no kwangirika byakozwe mugihe cyo gutunganya ibyuma, gutwara no kwishyiriraho.Ubushakashatsi bwerekana ko nyuma yumunyu wo gutera umunyu, ibicuruzwa byangirika birimo magnesium na aluminiyumu nabyo bigaragara mugukata icyuma.Umuyoboro muke hamwe nubucucike bwibicuruzwa byangirika bitandukanya gukata amazi y’ibidukikije hamwe na ogisijeni, bigakora urwego rukingira.Kubwibyo, nubwo igishishwa cya resin cyangiritse, zinc-aluminium-magnesium alloy layer iracyafite imbaraga zo kurwanya ruswa no kurwanya ikirere.Ku rugero runaka, ibi birinda ingaruka zo kwangirika ziterwa no gushushanya, kogosha, no gukubita bikunda kubaho mugihe cyo gushiraho urupapuro.