Preparation - Miscellaneous Metals

Brass & Copper

Brass and copper can be painted without priming if an alkyd topcoat is used. If painting with latex, use an alkyd primer first. If exposed copper has turned green, the copper should be cleaned with phosphoric acid to remove the green patina before painting.

Anodized Aluminum

Anodized aluminum is very difficult to paint. The surface is a corrosion resistant oxide layer that alkyd and latex paints won't adhere to. Vinyl wash primers and epoxy paints perform better, but a spot adhesion test should be done first.

Stainless Steel

Stainless steel can be painted with epoxy-polyamide paints. Brush blasting to provide a surface profile is highly recommended before painting.