Use what the pros do for backing your mats, photos, prints and cards. Acid-free 100% cotton foam core backing, made by Bainbridge. Foamboard is super lightweight, cuts easily and is very sturdy. Our foam core boards are acid-free and archival, so you can rest easy knowing that your work won't yellow or turn brittle. Bright white, with a 1/8" core. Give your work a professional finish with our pre-cut Foam Core!

4" x 6" size is great for 4x6 photos and artwork. 4x6 Foam Core will fit into our 4x6 Photo Bags.