Conservation-Grade Backings for
14 x 18" Images. 14-1/4 x 18-1/4
.040" thick Alpha Cellulose board.
Acid-free, Lignin-free, Buffered. All white.
Indefinite Storage.

Conservation Grade Backing Board for 14 x 18" images. 14-1/4 x 18-1/4" .040" thick. All white. Lignin-free. Acid-free. Buffered. Contaminant-free. Meets the Library of Congress archival standards. Indefinite Storage.