Difference between pre-galvanized and hot-dip galvanized ...
A. Dear Friend. In Fabrication line: pre-galvanized structural steel is: "already hot dip galvanized". For necessary repairing on pre-galvanized steel or galvanized steel, normally we use zinc-rich paints. After repairing with that, match the color with aluminium spray paint. Please try. Umesh Dalela.