Unfortunately, gelcoat pool applications are a factory process and cannot be reproduced in your backyard. Instead, there are replacement coatings--thermoplastic polymers that are used to resurface fiberglass. Before the new coating is applied, the pool must be fully drained.
Aggregate: Another trendy option is aggregate. It is a mixture of quartz, pebbles, and plaster. This creates a durable, attractive and colorful finish. The aggregate can be more expensive than other options. This material creates a rough surface. The two most popular choices are Pebble Tec and Wet Edge.
Plaster is more expensive than painting, but it will provide protection and a classic appearance for your pool. Most pool plaster is made up of cement, sand and water. However, some high-end pools use marble aggregate. Refinishing a medium-sized pool with plaster is relatively simple for about $7,000-$10,000, though it requires regular maintenance.
glass bead pool finish