Minor damage to enamel paint often can be repaired at home using an enamel repair kit available at a hardware or home supply store. These kits generally contain epoxy, wet/dry sandpaper, fine-grit sandpaper, gel coat enamel and an applicator.
Clean the area well with rubbing alcohol before you begin the repair process. Dry the area with a hair dryer to ensure that the epoxy sticks to the area.
Lightly sand down the rough edges of the area that is chipped or cracked with fine-grit sandpaper. Smooth the edges as much as possible. Wipe away all sanding dust.
Fill in the damaged area with the epoxy. Remove any excess epoxy using the applicator tool. Allow the area to cure for 12 hours.
Lightly sand the cured epoxy with the wet/dry sandpaper included in the kit. Wet the fine-grit sandpaper and sand the repair to a smooth finish.
Mix the appropriate colour enamel according to the kit directions. Apply a layer of enamel to the repaired area. Allow the enamel to dry for 24 hours.
Epoxy does not stick to a wet surface. Dry the area well. Sand the area smoothly to ensure that the repair blends into the existing enamel.