These White 3/16" Foam Core Mounting Boards have smooth white clay surfaces are ideal for mounting, framing, silk screening and more. These foam boards are lightweight but rigid, they resist warping, denting, crushing and won’t ripple. These White 3/16" Foam Core Mounting Boards have resilient polystyrene cores that ensure a clean precise cut, whether you use a mat cutter or utility knife to get a uniform edge every time. These foam core mounting boards bound easily with fabrics, paper and many other materials.