What materials can be treated?
The Bookkeeper process is suitable for all paper-based materials, including bound and unbound documents, printed and handwritten materials, newsprint, books, letters and envelopes, postage stamps and paper collectibles, pamphlets, and flat stock such as maps and prints. The process uses no solvents and will not move, feather, loosen, or harm inks, adhesives, covers, leather, plastic, metals or fabrics.