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 cya plaque hamwe na zinc yashonga kugirango ikore icyuma gisya;icyuma gisize icyuma.Ubu bwoko bwicyuma nabwo bukorwa nuburyo bushyushye, ariko ako kanya nyuma yo kuva muri tank, bishyuha kugeza kuri 500 ℃ kugirango habeho amavuta ya zinc nicyuma.