- 1). Prime the metal war décor using metal primer before painting with any type of paint. Apply the primer with a paintbrush to one side of the décor at a time, allow the metal to dry for one to two hours on each side, then add a second coat to each side.
- 2). Spray paint metal war décor if you want it a single, solid color. Line a table or floor with newspaper or plastic sheeting and place the metal war décor so that the front of the décor faces down in the center of the covered space. Spray the paint over the entire piece of décor until it's evenly covered, wait 30 minutes to an hour for it to dry, turn the metal war décor over, spray the front until uniformly covered and wait another 30 minutes to an hour until the front dries before hanging.
- 3). Powder coat metal war décor if you want an alternative to spray painting. Depending on the size of the metal décor, place the piece of decor in an oven for five minutes at 400 F or hold the flame of a propane torch to a section of the décor for 15 to 20 seconds. Apply the powder coating to the heated war décor with a powder coating gun connected to an air compressor set at 5 to 10 PSI.
- 4). Paint the metal war décor with standard latex paint if you want to use multiple colors in the metal décor design. On each section of the metal décor, use a paintbrush that's roughly the same size as the metal piece that you want to paint and spread the paint on in long, even strokes. Lay the metal décor to dry on a covered area.