Lanu ufiufi coil o se oloa o le vevela u'amea laupepa, vevela alumini plated zinc ipu, electrogalvanized pepa, ma isi, pe a uma le i luga pretreatment (chemical degreasing ma vailaʻau liua togafitiga), faʻapipiʻiina i se apa poʻo ni vaega o le faʻapipiʻiina o meaola i luga o le fogaeleele, ma ona tao lea ma faamalolo.E mama le mamafa, foliga matagofie ma lelei tete'e corrosion, ma e mafai ona faagaoioia tuusao.