Do not paint over rusted surfaces or in moist or humid conditions.
Wash with an appropriate degreaser or galvanized iron cleaner and rinse thoroughly with clean water.
Apply HydroEtch or MSPrime over a clean, dry and stable surface before application of topcoat.
Remedy
Mild steel: remove rust, loose and flaking paint.
Spot prime with a rust converter where rust cannot be completely removed, apply HydroEtch or MSPrime rust resistant primer on all bare areas before repainting.
Galvanized steel: remove rust, loose and flaking paint.
Apply HydroEtch rust resistant primer on all bare areas before repainting. If rust cannot be removed completely it is suggested to replace galvanized sheet.
