This pack of 16 x 20" Bright White 8-Ply 100% Cotton Museum Board from Archival Methods contains 5 boards that are designed for matting of fine prints, precious documents, traditional and digital photography. The 8-ply boards create a 1/8" separation between artwork and glazing.
The Cotton Museum Boards are acid and lignin-free and use alkaline or neutral sizing. No brightening agents are used and no yellow cast is present. All boards are buffered with calcium carbonate to ensure that a polluted environment won't cause paper's pH value to decrease with age.