Ku bishishwa bya galvanis, icyuma cy'urupapuro cyinjizwa mu bwogero bwa zinc zashongeshejwe kugira ngo ukore urupapuro rwa zinc rusize hejuru.Ikorwa cyane cyane nuburyo bukomeza bwo gusya, ni ukuvuga, icyuma kizungurutswe gihora cyinjizwa mu kigega cyo gusya hamwe na zinc yashongeshejwe kugirango gikore icyuma gisya;icyuma gisize icyuma.Ubu bwoko bw'icyuma nabwo bukorwa nuburyo bushyushye, ariko ako kanya bumaze kuva mu kigega, bushyuha bugera kuri 500 ℃ kugirango bukore firime ivanze na zinc na fer.Igiceri cya galvanised gifite irangi ryiza hamwe no gusudira.