The primary material that we use in our manufacturing process is Fiberglass Reinforced Plastic. FRP is a composite of glass fiber and thermosetting resin (usually polyester). Several layers of glass mat or glass fabric are saturated with resin and laminated together on the surface of a mold to create a shape that is very strong and light.
The finished product is surfaced in the mold with polyester gelcoat, which becomes an integral part of the fiberglass laminate. A high gloss solid colour is the standard finish but Plastiglas has innovated many others (e.g. granite, limestone, terra cotta, etc.).