https://ceid.utsa.edu/dtmakerspace/product/museum-mounting-board-2-ply-full-sheet-white/
Museum Mounting Board 2-Ply Full Sheet White - UTSA Downtown Makerspace
Aug 4, 2025 - Made of 100% cotton fibers, acid-free and buffered with calcium carbonate to guarantee longevity. 2- and 4-ply boards.
museum mounting boardfull sheetplywhiteutsa