Galvanized metal peeling
Peeling probable causes - usually no or improper priming. Improper surface preparation or choice of paint. Not removing rust, oil and other matter. Not deglossing baked enamel finishes. Painting too soon after cleaning galvanized surface. Galvanized metal is very alkaline until weathered.
Galvanized metal solutions - remove all rust, loose paint and other particles. All dust must be rinsed or wiped away. Allow galvanized to weather prior to coating. Apply an acrylic corrosion-resistant primer. New galvanized must be primed with an acrylic corrosion-resistant primer if the finish coat is oil base or vinyl latex.
Primers and exterior finishes - Bare or new galvanized metal needs aggressive cleaning with mineral spirits prior to using a galvanized primer. Ask your Muralo dealer for the best Muralo exterior paint for your project, in the color and sheen of your choice.