Acid-free 100% cotton foam core backing, made by Bainbridge. Use what the pros do for backing your mats, photos, prints and cards. Foamboard is super lightweight, cuts easily and is very sturdy. Deep rich black color, the only black on the market that is acid-free and archival. Will not fade or yellow.
Perfect for mounting and backing dark pieces and black and white images. The preferred choice for backing works that are matted with black mats. 3/16" thick.
24" x 30" size is great for large posters, 24x30 photographs, prints and artwork.