Our’ exclusive Perma/Dur (a contraction for Permanent and Durable) is an excellent archival quality, acid-free paper with a 3% calcium carbonate buffer offered at a moderate price. It is a premium quality paper with a potential life of over 300 years. Perma/Dur Bond is an excellent choice for reproductions, thesis reports or books, or anywhere durability and longevity are a factor. Ideal for laser printing, ink jet printing or xerographic or lithographic processes. Standard size sheets, including European A4 size, are available. In addition to standard size sheets, we offer Perma/Dur in large sheets that are perfect for wrapping and interleaving prints and drawings. A favorite of archivists and conservators. The same quality paper is also offered in rolls.