100% Archival Backing Boards for Comics & Magazines
Our conservation grade SUPER ARCHIVAL BACKING BOARD 
material meets the Library of Congress archival standards. It is 100% alpha-cellulose, .040" thick, acid-free (alkaline pH 8.5), lignin-free, contaminant-free. It comes buffered with a 3% calcium carbonate buffer. Use for indefinite-term storage (hundreds of years).

Archival BACKINGS for Current Comics
Museum Grade Backings
Current Comics -1990's.
6-3/4 x 10-3/8".
.040" thick. Acid-free, Lignin-free, Buffered. All white.

Base SKU:kaf40700