If you need to paint a solid metal fence panels, you have to contend with a few complications. First, as opposed to wooden structures, metal fences are nonporous, making them poorly suited for color adhesion. You need to coat metallic fences with a special primer that will wear the surface to promote adhesion, or finish will nail over time. In addition, since metal fences are licking, you need to employ a certain program strategy that will discourage runs and drips.
Cut away all vegetation from solid metal fence panels that can affect your ability to paint. Wash the fence using a high pressure washer. Let the metal fence dry. Grind metal fences to promote color adhesion by applying a layer of galvanized metal etching primer. Use a mini roller to apply the primer. Eliminate runs and drops by brushing them smoothly using a 2- to 3-inch latex brush made for latex paints. Allow the etching primer to dry and harden for four hours.
Wash all painting solid metal fence panels with water. Apply a layer of exterior acrylic latex paint using a mini-roll filled with a fresh, clean louver. Apply the same way you applied the primer. Let the paint dry for two hours, and then use another jacket if you can see the primer showing through.