Archival Foam Board Backings for 8 x 10" images. .125" thick (1/8"). Acid and Lignin-free. Buffered. Indefinite Storage.

MUSEUM GRADE
8 x 10 Still Foam Board Backings
.125" thick Acid-free,Lignin-free & Buffered
All white. Use for 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.