Mkuwa-zowoneka bwino za oxidation ndi mapulasitiki a ndodo zamkuwa zimawapatsa malo apadera pantchito yokongoletsa kamangidwe. Kupyolera mu kusinthasintha kwa pamwamba, kukalamba kwachikale kapena electroplating, kusintha kwa mtundu kuchokera kuchikasu chowala kupita kubiriwira kwakuda kumatha kutheka, ndipo amagwiritsidwa ntchito kwambiri{2}}pamakoma a nsalu zotchinga, ziboliboli zaluso, mizere yokongoletsa mkati ndi zina. Mwachitsanzo, zobowola-zipilala zosemedwa za nyumba inayake yodziwika bwino zachikhalidwe zimapangidwa ndi mkuwa wa H68 (68% copper ndi 32% zinc) kudzera mu upangiri wa extrusion. Izi sizimangokwaniritsa zofunikira zamphamvu zamapangidwe komanso zimapereka mawonekedwe a retro kudzera mu chithandizo cha oxidation, ndikukwaniritsa kuphatikiza koyenera kwa zomangamanga ndi magwiridwe antchito.
