Lub substrate (xeb-proofladed xim) rau galvanized qhov chaw muaj epoxy zinc daj primer (dual Cheebtsam) thiab epoxy zinc daj primer. Galvanized qhov chaw yog cov hlau uas tsis yog-ferrous, thiab cov hlau tsis muaj xim muaj cov adhesion tsis zoo dua li dub tag nrho cov hlau; cawv-liab-xim xim hauv qab feem ntau siv nyob rau hauv kev ua lag luam, epoxy hlau liab primer yuav tsum tsis txhob siv rau galvanized qhov chaw, txwv tsis pub nws yuav yooj yim poob. Nws yog tshwj xeeb taw qhia tias kev siv cov kua qaub kua qaub rau ntawm qhov chaw galvanized yuav ua rau cov tshuaj tiv thaiv saponification. Tsis tsuas yog lub txheej tsis ua hauj lwm, cov txheej txheem galvanized tseem yuav puas.
