Archival Foam Board Backings for HALF SHEET POSTERS. 22 x 28" images. .1875" thick (3/16"). All white. Acid & lignin-free. Buffered. Indefinite Storage.
DETAILS
MUSEUM GRADE
Half Sheet Poster Foam Board Backings
22 x 28" .1875" (3/8") thick.
Acid-free, lignin-free and buffered.
All white. Indefinite storage.
This board is an indefinite-term, archival board. It has a polystyrene foam core (making it ultra light-weight) with a laminated white, smooth facing. It is buffered with 3% calcium carbonate and is acid-free with a pH of 7.5-8.5. Buffered board blocks migrating acids.
Half Sheet Poster Foam Board Backings
22 x 28" .1875" (3/8") thick.
Acid-free, lignin-free and buffered.
All white. Indefinite storage.
This board is an indefinite-term, archival board. It has a polystyrene foam core (making it ultra light-weight) with a laminated white, smooth facing. It is buffered with 3% calcium carbonate and is acid-free with a pH of 7.5-8.5. Buffered board blocks migrating acids.