Is polyester resin the same thing as fiberglass resin?
A.3 Fiberglass is a specific kind of glass mat that may be purchased in several distinct forms. The resulting substance is known as polyester fiberglass resin when fiberglass mats or cloths are saturated with polyester resin.
Epoxy resin may also be used in this manner; however, polyester resin has been referred to as fiberglass resin for some reason.