Dombo rakavharidzirwa nesimbi padenga remba chivakwa chitsva chedenga, icho chakavakirwa pane yakakwira corrosion inodzivirira Al-Zn ndiro, yakakwira mhando isina mvura acrylic resin sekunamira, kukwira kwemamiriro ekunze ematombo echisikigo zvimedu kana inorganic color pigment yekudhayiwa kwematombo echisikigo pamusoro. ndeimwe yekugadzira, yakaoma, nharaunda-inoshamwaridzika zvigadzirwa zvepamusoro.
Dombo rakavharidzirwa simbi yekufukidzira tile haingove neyakasikwa, yakadzika uye yakanakisa yekushongedza zvimiro zvechinyakare ivhu tile, asi ine chiedza, chakasimba, uye chakasimba kuita kwemazuva ano simbi tile. Ndiwo maitiro makuru ezvino epasirese epamusoro pedenga zvinhu.
Dombo rakavharwa nesimbi denga rekutara rakakodzera denga rakatsetseka purojekiti ine akasiyana maitiro ejecha marudzi echimiro (huni, simbi, kongiri), inoshanda kune yekutanga zvivakwa.