Wash and polish the car after you’ve finished all of your body repairs. Do this in the right and correct way. First place the car in the shade and wait until the metal surfaces have cooled. Use cool or cold water, never hot. Avoid household soaps. They may leave a dull film on the highly polished surfaces. Use running water if possible.
A good pre-wax cleaner will restore the original gloss to a dull finish. A polishing agent is combined with some cleaners, but the cleaning function is most important. You can then wax your car, but should keep in mind that some auto makers and manufactures discourage waxing. Abrasive cleaners may later be used to remove the wax – and cut through the finish. Consult the owner’s manual to this point.