Degreasing is the initial surface preparation stage, where oil, grease, dirt, and other contaminants are removed from steel components using suitable cleaning solutions. This helps prepare the steel surface for effective pickling and galvanizing.

During pickling, steel components are immersed in a controlled acid solution to remove rust, mill scale, and surface oxides. This cleaning process prepares the steel for proper zinc bonding during hot dip galvanizing.

Fluxing helps remove residual oxides and prevents further oxidation before galvanizing. The prepared steel is treated with a suitable flux solution to promote proper wetting and metallurgical bonding when immersed in molten zinc.