Age or a poor paint job may cause the clear coat to peel from your car. The paint underneath is often undamaged, but the peeling clear coat makes the car look bad. The only way to ensure that the clear coat and paint are in top condition is to repaint the whole panel that is affected. But you can use a temporary fix that will last for a few months to a few years, until you can get the needed repairs.
Wash the area with soapy water. Allow to dry completely.
Lightly sand the area that is peeling. Do not sand through the paint, as you only want to remove any evident peeling.
Cut the bottom from a cardboard box. Place it over the area that needs touching up, so that the clear coat will not spread to the undamaged areas.
Spray or brush a clear coat touch-up paint onto the area inside the box. Touch-up paint is available at most auto supply shops. Cover with an upside-down intact cardboard box to keep dirt and dust from settling on the area. Allow to dry for the length of time recommended by the manufacturer.
The sooner you stop the peeling, the less noticeable it will be, and the less likely that it will spread, but keep in mind that all amateur clear coat repairs will be evident.
Work in a well-ventilated area. Wear safety goggles and a dust mask.