Epoxy is sometimes used as a primer on materials that can't stand polyester. For instance, many surfboards are made from a styrofoam core with a layer of epoxy and then covered with polyester-resin and fibreglass.
Epoxy is sometimes used as a primer on materials that can't stand polyester. For instance, many surfboards are made from a styrofoam core with a layer of epoxy and then covered with polyester-resin and fibreglass.