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Conservation Grade Super Acid-free Backings- Our 0.40 point thick board is off-white, 100% alpha-cellulose board and buffered with calcium carbonate, which keeps the board from breaking down (indefinitely). It is acid-free (alkaline 8.0-9.0), lignin-free/contaminant-free. Suitable for conservation. Our material meets the Library of Congress Archival Standards. Acid-free board can trap migrating acids in paper and neutralize it. Buffered board can stop migrating acids from entering an object and therefore prevent damage.

BACKINGS for Current Comics - 1990s. 6-3/4 x 10-3/8"
BACKINGS for Current Comics - 1990s. 6-3/4 x 10-3/8
Description:
.040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
.040 Super Acid Free Board
Base SKU: kaf40700

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BACKINGS for Standard Comics - 1970s thru 1990s. 7 x 10-3/8"
BACKINGS for Standard Comics - 1970s thru 1990s. 7 x 10-3/8
Description:
.040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
.040 Super Acid Free Board
Base SKU: kaf40725

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BACKINGS for Silver/Golden Age Comics - 1950s thru 1960s. 7-1/2 x 10-3/8"
BACKINGS for Silver/Golden Age Comics - 1950s thru 1960s. 7-1/2 x 10-3/8
Description:
.040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
.040 Super Acid Free Board
Base SKU: kaf40775

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BACKINGS for Golden Age Comics. 7-3/4 x 10-3/8"
BACKINGS for Golden Age Comics. 7-3/4 x 10-3/8
Description:
.040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
.040 Super Acid Free Board
Base SKU: kaf40800

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BACKINGS for Super Golden Age Comics. 8 x 10-3/8
BACKINGS for Super Golden Age Comics. 8 x 10-3/8
Description:
.040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
.040 Super Acid Free Board
Base SKU: kaf40824

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BACKINGS for Large Comics. 8-1/2 x 11-3/8"
BACKINGS for Large Comics. 8-1/2 x 11-3/8
Description:
.040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
.040 Super Acid Free Board
Base SKU: kaf40875

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BACKINGS for Standard Magazines. 8-3/4 x 11-3/8"
BACKINGS for Standard Magazines. 8-3/4 x 11-3/8
Description:
.040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
.040 Super Acid Free Board
Base SKU: kaf40900

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BACKINGS for Small Sheet Music, Large Magazine. 9-1/4 x 12-3/8"
BACKINGS for Small Sheet Music, Large Magazine. 9-1/4 x 12-3/8
Description:
.040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
.040 Super Acid Free Board
Base SKU: kaf40950

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BACKINGS for Mylar Sleeves .040 thick. Acid-Free Board & buffered.
BACKINGS for Mylar Sleeves .040 thick. Acid-Free Board & buffered.
Description:
Playboy Magazines. 9-3/4 x 12-7/8".
Buffered. All White.
Playboy Magazines. 9-3/4 x 12-7/8".
Base SKU: kaf401013

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