NEW ProFramer ULTRA is no ordinary foamboard. The NEW ProFramer ULTRA is a brand new formula foamboard made with a much higher density/grammage extruded polystyrene core and covered on both sides with clay coated, acid free, netural pH, matt surface paper. The boards have a unique 0.32 micron matt cello glazed laminate on the back which does not allow moisture to enter the board resulting in a much stiffer board that resists bowing. Self adhesive is pH neutral, being acid free. Highly recommended for conservation framing.
