Polyester resin is a material for producing fiberglass swimming pools. Once the swimming pool’s shell is complete, a polyester resin topcoat can be applied to provide an incredibly durable, water and weatherproof layer.
Manufacturers produce these resins in countless colors to suit the needs of any backyard aesthetic.
Polyester resin is the most popular topcoat material for a fiberglass swimming pool because it’s relatively inexpensive and it’s easier to produce.