Whalelite is an exceptionally robust and sustainable material designed specifically as a fiberglass backerboard. Its manufacturing process involves meticulously layering of high-grade custom FSC-certified paper with a thermosetting resin, which is then pressed into a solid panel. Proudly crafted in the USA by Richlite, Whalelite has gained recognition for its outstanding durability, high screw retention strength, and remarkable resistance to moisture.