Conservation-Grade Backings for
Art, Photos, Maps. 18 x 24-¼".
.040" thick Alpha Cellulose board.
Acid-free, Lignin-free, Buffered. All white.
Indefinite Storage.

Conservation Grade Backings for
Artwork, Photos, Unfolded maps.
18 x 24-1/4" .040" thick Alpha-Cellulose board.

All white. Lignin-free. Acid-free. Buffered. Contaminant-free.
Meets the Library of Congress archival standards.
Indefinite Storage.