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This .040" thick SUPER ARCHIVAL BOARD meets the Library of Congress archival standards. It is 100% alpha-cellulose, acid-free (alkaline pH 8.5), lignin-free, contaminant-free. It is buffered with a 3% calcium carbonate buffer. Use for indefinite-term storage (hundreds of years).

BACKINGS for Lobby Cards. 11 x 14"
BACKINGS for Lobby Cards. 11  x 14"
Description: .040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf401114

BACKINGS for Portfolios, Artwork. 11 x 17-1/4"
BACKINGS for Portfolios,  Artwork. 11 x 17-1/4"
Description: .040 Super Acid Free Board
Buffered. All White. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf401117

BACKINGS for Tabloids, Artwork. 12-1/4 x 18-1/4"
BACKINGS for Tabloids, Artwork. 12-1/4 x 18-1/4"
Description: .040 Super Acid-Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf401218

BACKINGS for Posters, Artwork. 14-1/4 x 18-1/4"
BACKINGS for Posters,  Artwork. 14-1/4 x 18-1/4"
Description: .040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf401418

BACKINGS for Window Cards Posters. 14-1/4 x 22-1/2"
BACKINGS for Window Cards Posters. 14-1/4 x 22-1/2"
Description: .040 Super Acid-Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf401422

BACKINGS for Artwork, Posters, Photos. 15 x 18-1/4"
BACKINGS for Artwork, Posters, Photos. 15 x 18-1/4"
Description: .040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf401518

BACKINGS for Newspapers, Posters. 15 x 24-1/4
BACKINGS for  Newspapers, Posters. 15  x 24-1/4
Description: .040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf401524

BACKINGS for Photos, Artwork. 16 x 20-1/4"
BACKINGS for Photos, Artwork. 16  x 20-1/4"
Description: .040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf401620

BACKINGS for Artwork, Newspapers. 17 x 21-1/4"
BACKINGS for Artwork, Newspapers. 17 x 21-1/4"
Description: .040 Super Acid-Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf401721

BACKINGS for Artwork, Photos, Unfolded maps. 18 x 24-1/4"
BACKINGS for Artwork, Photos, Unfolded maps. 18 x 24-1/4"
Description: .040 Super Acid-Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf401824

BACKINGS for Maps, Artwork, Posters. 21 x 36-1/4"
BACKINGS for Maps, Artwork, Posters. 21 x 36-1/4"
Description: .040 Super Acid-Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf402136

BACKINGS for Newspapers, Posters. 24 x 36-1/4"
BACKINGS for Newspapers, Posters. 24 x 36-1/4"
Description: .040 Super Acid-Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf402436

BACKINGS for Maps, Newspapers. 28-1/4 x 19-1/4
BACKINGS for Maps, Newspapers. 28-1/4 x 19-1/4
Description: .040 Super Acid Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf402819

BACKINGS for Half Sheet Posters. 28-1/4 x 22-1/2
BACKINGS for Half Sheet Posters. 28-1/4 x 22-1/2
Description: .040 Super Acid-Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf402822

Archival BACKINGS for Polyester Sleeves  .040" thick
Archival BACKINGS for Polyester Sleeves  .040" thick
Description: 27-1/4 x 41". Use with S2741R.
Buffered. All-white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf402741

BACKINGS for Posters, Maps. 30-3/4 x 42-1/2"
BACKINGS for Posters, Maps. 30-3/4 x 42-1/2"
Description: .040 Super Acid-Free Board
Buffered. All white. Lignin-free. Acid-free. Contaminant-free. Meets Library of Congress archival standards.
Base SKU: kaf403141

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