RV, Motorcycle & Marine
Gel coat is a type of epoxy coating sprayed over a molded composite surface such as fiberglass or carbon fiber. Many, if not most boats and RVs have gel coats. By its nature, a gelcoated surface is porous. Fresh coats look smooth and reflective, but tend to become oxidized with time and exposure to the elements. Even the most meticulously maintained boat or RV will start to look dull and chalky after a few years.