We stock 3 grades:
1. CHIPBOARD - pH neutral board contains acid but is .30 point thick and an excellent choice for short-term storage. White on one side. SUPER economical.
2. STANDARD ACID-FREE is acid-free all the way through. Acid-free board can trap migrating acids in paper and neutralize it. Use our .028 point board for intermediate to long-term storage. White on both sides.
3. SUPER ACID-FREE - **NEW Material** - Our .40 point thick board is off-white, 100% alpha-cellulose board and buffered with calcium carbonate, which keeps the board from breaking down (indefinitely). Acid-free (alkaline 8.0-9.0), lignin-free, contaminant-free. Suitable for conservation. Meets the Library of Congress Archival Standards for indefinite storage.
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.
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| kcb30bh48 |
Billhead BACKINGS. 4-1/2 x 8-1/2".
.030 thick Chipboard.
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| kaf28bh48 |
Billhead BACKINGS. 4-1/2 x 8-1/2".
.028 thick Acid-Free Board
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| kaf40bh48 |
Billhead BACKINGS. 4-1/2 x 8-1/2".
.040 Super Acid-Free Board. Buffered.
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| kcb30bh58 |
Billhead BACKINGS. 5 x 8-1/2".
.030 thick Chipboard.
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| kaf28bh58 |
Billhead BACKINGS. 5 x 8-1/2".
.028 thick Acid-Free Board
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| kaf40bh58 |
Billhead BACKINGS. 5 x 8-1/2".
.040 Super Acid-Free Board. Buffered.
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| kcb30bh5588 |
Billhead BACKINGS. 5-1/2 x 8-1/2".
.030 thick Chipboard.
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| kaf28bh5588 |
Billhead BACKINGS. 5-1/2 x 8-1/2".
.028 thick Acid-Free Board
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| kaf40bh5588 |
Billhead BACKINGS. 5-1/2 x 8-1/2".
.040 Super Acid-Free Board. Buffered.
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| kcb30bh68 |
Billhead BACKINGS. 6 x 8-1/2".
.030 thick Chipboard.
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| kaf28bh68 |
Billhead BACKINGS. 6 x 8-1/2".
.028 thick Acid-Free Board
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| kaf40bh68 |
Billhead BACKINGS. 6 x 8-1/2".
.040 Super Acid-Free Board. Buffered.
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| kcb30bh78 |
Billhead BACKINGS. 7 x 8-1/2".
.030 thick Chipboard.
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| kaf28bh78 |
Billhead BACKINGS. 7 x 8-1/2".
.028 thick Acid-Free Board
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| kaf40bh78 |
Billhead BACKINGS. 7 x 8-1/2".
.040 Super Acid-Free Board. Buffered.
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