- Used as a Backboard for Framing
  - Acid and Lignin-Free
  - Archival Grade
  - 3% Buffering Agent Keeps an Alkaline pH
  
      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 
         | Thickness |  1/8" (3.2 mm) |  
  | Buffering |  3.0% buffering agent |  
  | Dimensions |  16.0 x 20.0" (40.64 x 50.8 cm) |  
  
    |  Packaging Info  |  
  | Package Weight |  2.55 lb |  
  | Box Dimensions (LxWxH) |  20.3 x 16.1 x 1.5" |  
  
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