Kukonzekera koyambira kumaphatikizapo kupukuta (kuchotsa mafuta), kuchotsa dzimbiri, kupukuta magawo atatu.Phosphating ndi ulalo chapakati, degreasing ndi dzimbiri kuchotsa ndi kukonzekera ndondomeko pamaso phosphating, kotero kupanga mchitidwe, sitiyenera kutenga phosphating ntchito monga cholinga, komanso kuyambira zofunika phosphating khalidwe, kuchita ntchito yabwino kuwonjezera pa. mafuta ndi dzimbiri kuchotsa, makamaka kulabadira kukopana pakati pawo.