PA Essentials Self-Stick High Tack Mount Boards feature pressure sensitive, acrylic adhesive on one side of a 24pt SBS board. Surfaces are extremely smooth, virtually eliminating the orange peel look normally associated with poor quality substrates such as chipboard and some foam products. Pressure sensitive adhesive is specially formulated for the photographic industry and will not interact with photographic emulsions or digital prints. Boards also work great for keeping art papers and stitchery fabrics smooth and wrinkle-free for professional looking mounting and framing. 16"x 20"