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Poor Galvanized Metal

Poor Galvanized Metal Banner

Poor Galvanized MetalPaint that has lost its adhesion to a galvanized metal substrate.

Possible Causes:

  • Improper surface preparation, such as inadequate rust removal.

  • Failure to apply a primer before application of an oil-based or vinyl latex paint.

  • Failure to sand baked-on enamel finishes or glossy surfaces before painting.


  • Any rust on the metal should be removed with a wire brush; then, an acrylic latex corrosion-inhibitive primer should be applied (one coat is usually sufficient). Previously painted galvanized metal that is completely rust-free can be painted without applying a primer. A latex metal primer should be applied to unpainted galvanized metal, followed by a top quality exterior acrylic latex paint.