Ngakhale kuti banga lonyowa kapena 'dzimbiri loyera' nthawi zambiri silimawononga mphamvu yoteteza ya chophimba chopangidwa ndi galvanized, ndi vuto lokongola lomwe ndi losavuta kupewa.

Madontho osungiramo zinthu zonyowa amapezeka pamene zinthu zatsopano zolumikizidwa ndi maginito zimakumana ndi chinyezi monga mvula, mame kapena chinyezi (chinyezi chambiri), ndipo zimakhalabe pamalo opanda mpweya wokwanira pamwamba. Zinthu zimenezi zingakhudze momwe utoto woteteza umapangikira.

Kawirikawiri, zinc imayamba kugwira ntchito ndi mpweya kuti ipange zinc oxide, kenako ndi chinyezi kuti ipange zinc hydroxide. Ndi mpweya wabwino, zinc hydroxide imasanduka zinc carbonate kuti ipereke chitetezo ku zinc, zomwe zimachepetsa dzimbiri. Komabe, ngati zinc ilibe mpweya woyenda bwino ndipo ikakhalabe ndi chinyezi, zinc hydroxide imapitiriza kukula m'malo mwake ndikupanga banga lonyowa.

Dzimbiri loyera limatha kuchitika kwa milungu ingapo kapena usiku wonse ngati zinthu zili bwino. M'malo ovuta kwambiri a m'mphepete mwa nyanja, dothi losungiramo zinthu zonyowa limathanso kuchitika kuchokera ku mchere wochuluka womwe umalowa m'mlengalenga womwe umayamwa chinyezi usiku.

Zitsulo zina zomangira zitsulo zimatha kupanga mtundu wa banga lonyowa lotchedwa 'black spotting', lomwe limawoneka ngati mawanga akuda okhala ndi dzimbiri loyera lozungulira kapena lopanda. Mtundu uwu wa banga lonyowa losungiramo zitsulo umapezeka kwambiri pazitsulo zopepuka monga mapepala, ma purlin ndi zigawo zopyapyala zokhala ndi makoma ochepa. N'zovuta kwambiri kuyeretsa kuposa mitundu ya dzimbiri loyera, ndipo nthawi zina mawangawo amatha kuwonekabe mutatsuka.