Laminated thermosetting products consist essentially of fibrous reinforcing materials, such as cellulose paper, cotton fabric, asbestos fabric, nylon fabric, glass fabric etc. that are impregnated with thermosetting resin binder and consolidated under high temperature and pressure into dense solid products capable of having high mechanical and electrical properties. Resins used in laminated thermosetting products include phenolics, melamines, silicones, polyesters and epoxies.