Metal Finishes for Walls
The first step in applying a metallic glaze to a wall is to paint the wall with a base coat of interior latex paint in a color that will complement the glaze. Silver, copper and gold metallic glazes applied over a base coat of ivory give a look that's streaky and lacks depth.
A base coat close in color to the metallic glaze will complement it. Rich color results when a metallic silver glaze is applied over a gray base coat. A reddish-brown undercoat works well with a copper metallic glaze, and a dark-mustard base coat brings out the color in a gold metallic glaze finish.
It's tricky to apply metallic-finish paints without streaks. Do-it-yourselfers will get better results when using metallic glazes in small areas as accent colors. To glaze a large surface, apply the glaze with a spray gun or hire a professional to do the job.