Gelcoat pool application can only be done in a factory environment. Instead, there are replacement coatings--thermoplastic polymers that are used to resurface fiberglass. Before the new coating can go on, the pool should be completely drained.
There are three types of in-ground pools—those with vinyl liners, those made from fiberglass, and those made of concrete.
There are two types. Exposed means the pebbles will be exposed completely, leaving an uneven texture or bumpy finish. Polished produces a flat surface with a smooth texture.