Fiberglass is a commonly used material in building RVs. It offers durability, is lightweight, and has an impressive appearance. However, prolonged exposure to the elements can cause the fiberglass on your RV to lose its shine and become dull. This natural process is known as oxidation. If you wish to restore that radiant shine, it is necessary to eliminate the oxidation from your RV. While the task isn't overly complicated, it does require some effort.