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Memories Can Fade Away.
The precious paper documents and keepsakes that tell the stories of our lives can become prematurely brittle and fragile due to harmful acids that destroy paper fibers.Bookkeeper makes all paper acid free. Left untreated acid will destroy the strength of paper in a very short time. Bookkeeper gently neutralizes the destructive acids in paper and deposits a safe, permanent alkaline buffer to protect against future acid attack.Preserve Your Family History or other Valuable Collections with Bookkeeper today.
Visit ourArchival Boxes Page.
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1. What is Bookkeeper?
Bookkeeper preserves and protects all forms of paper-based materials. It deposits a safe, non-toxic alkaline buffer into the structure of the paper. This buffer material neutralizes acids that can rapidly weaken the paper and cause it to become brittle. The buffer materials are microscopic particles of an alkaline compound (magnesium oxide). The particles are dispersed and suspended in an inert liquid material (a blend of non-toxic, fluorinated materials). When the product is sprayed on paper, the buffer particles blend with the paper structure. The inert liquid simply evaporates. Because the formula contains no water, the liquid does not make the paper wet and it will not cockle or stiffen from the application. The buffer particles readily absorb and neutralize the acids in paper. The material continues to absorb acid over the life of the paper. This is a permanent treatment for the life of the paper.
2. What materials will Bookkeeper protect?
Bookkeepr is suitable for all paper-based materials, including newsprint, letters and envelopes, certificates, awards, postage stamps, books, pamphlets and artwork. The product contains no solvents and will not affect inks, adhesives, leather, plastic, metals or fabrics. If sprayed on non-absorbent materials (i.e. table tops, plastic, etc.), a light coating of alkaline material will be noticeable. This can be cleaned with a soft, dry or slightly damp cloth.
3. Is it safe for photographs?
The Image Permanence Institute determined that Bookkeeper satisfies the requirements of the Photographic Activity Test (PAT). But the product is not intended for use on photographs, and photographs will not benefit from the product. Photographs can safely be stored with treated materials with no adverse effect from the treatment. If sprayed on a photograph, a light coating of alkaline material will be noticeable. This can be removed with a soft, dry cloth.
4. Is It Safe For Colors and Inks?
Bookkeeper contains no solvents and no water. Independent testing of hundreds of ink and paper samples from 1800 to now have found no inks or colors which are dissolved or caused to run or bleed by this material. In a few cases, the actual shade of a color may be affected by the change in pH from acid to alkaline. But even pH sensitive colors are often not affected unless the paper becomes wet with water. Bookkeeper should not be used on "e;blue prints"e; or other similar materials because these colors may be affected by raising the pH.
5. What about glossy or encapsulated materials?
Bookkeeper will protect glossy materials. After applying the product, wipe off any excess surface coating with a soft, dry cloth. The product does not penetrate the plastic coating of encapsulated materials.
6. Does it stop paper from yellowing?
No, papers like newsprint contain chemical impurities that are affected by light and oxygen over time. These will still tend to turn yellow.
7. How will it affect postage stamps?
Bookkeeper will neutralize acid and provide a protective alkaline buffer. It will not dissolve inks or adhesives, and it will not interfere with taggent materials.
8. Is it hazardous in any way?
The ingredients in Bookkeeper are non-hazardous, non-toxic and non-flammable. The material dries odor-free, and it can be used in spaces with normal ventilation with no special exhaust requirements. Even though the product is very safe, you should always consult with a professional conservator before treating any artifact that has a high commercial value.
9. Is there a test to see if it works?
Many companies sell products to test for acids in paper. These require you to use a special dye to place a permanent mark on the paper, or to use a special test strip and place a drop of water on the paper. On the pH scale of 0-14, a pH of seven is neutral (pure water). A pH of less than 6.5 is undesirable for paper.
10. Is there a shelf life?
Bookkeeper can be stored indefinitely and will not lose its effectiveness.
11. How is Bookkeeper sold?
The product is sold in 8 ounce pump spray bottle which is pressurized by pumping air in with the cap. A bottle contains enough material to protect at least 37 square feet of paper. This means one bottle will treat up to 450 typical (3"e; x 4"e;) clippings or scrapbook items at a cost of about 10 - 15 cents each.
12. Any handy tips on using Bookkeeper?
a) Make sure you shake the bottle frequently while using it. b) Pump plenty of air into it. c) If your nozzle clogs up, soak it in vinegar (not water).
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FAQs are copyright of Preservation Technologies, L.P.
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Here's what our customers are saying:
I wanted to compliment you on your website and the items that you carry. I've scoured countless stores & websites and no one carries all the products you do. You have EVERYTHING one needs to safely store photos and documents. Kudos!. - Sheila L. (Read More)
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