The Acid-Free Foamboard 10-pack from Archival Methods is used as a backing board for framing. Each board is 1/8" thick, making it suitable for many frame profiles. Because of the thinness of the board, a frame package less than 3/8" can be created. This archival grade board is acid and lignin-free and contains a 3% buffering agent to maintain an alkaline pH.
UPC: 813903026400