1. Clean the paint that is peeling off.
2. Clean surfaces with a cleaning agent, according to the instructions on the label. Carefully rinse the surfaces and let them dry.
3. Clean and expand the cracks up to a stable base. Fill the holes, cracks and uneven areas with putty.
4. Polish the treated locations with sandpaper and remove the polishing dust with a brush.
5. Prime the areas treated with putty or, if necessary, the entire surface, using primer.
6. Paint the surface twice with a paint finish.
7. Clean the tools with soapy water and carefully rinse.