Polyester resin is a type of synthetic composite material commonly used in construction, automotive and marine industries. When searching for synonyms for polyester resin, one might come across terms such as fiberglass resin, laminating resin, casting resin, and epoxy resin. Fiberglass resin is specifically designed for reinforcing fiberglass structures, while laminating resin is used for laminating and bonding materials. Casting resin is typically used for creating molds and decorative pieces, while epoxy resin is favored for its high strength and durability. Other related terms include vinyl ester resin, which has superior resistance to water and chemicals, and polyester gelcoat, which is a topcoat used to protect and enhance the appearance of polyester resin products.