Rust-Oleum works best on small areas.
Rust-Oleum is a brand of spray paint that comes in 12-oz. cans. The finish material is not as durable as acrylic enamel, but it provides reliable protection on metal surfaces while inhibiting rust. While a touch-up can be performed with Rust-Oleum, it will be next to impossible to match a car's color with standard Rust-Oleum colors, obviating the need to spray the entire car. Unless, of course, the touch-up is not meant to blend.
Instructions
1. Tape off door handles, mirrors, windows and all other areas not to be painted. Use masking paper for larger areas, and be sure to tape together individual sheets of paper so that they do not separate when you spray near them.
2. Prepare the surface by sanding away any flaking or chipping paint. Fill dents and holes with body filler and then sand this with 120-grit paper when it dries. Re-sand with 150-grit and then 220-grit paper to achieve a smooth surface.
3. Prime the surface with Rust-Oleum metal primer. Shake the can well and remove the cap. Hold the can upright about 6 inches from the surface and depress the nozzle. Spray in even strokes from right to left, overlapping about half the width of the spray pattern on each pass. When you are finished, spray the area again, this time up and down as you hold the can at about a 45-degree angle. Let the primer dry.
4. Lightly sand the surface with 400-grit paper to remove dust and bumps. Apply the paint color in the same way as the primer. The goal is to leave a shiny surface of paint without drips, runs or separation when you are done.
5. Repeat step 4 as many times as it takes to get the finish you desire.
