Buffered tissue provides an effective, economical way to protect all types of art and artifacts. Archivists and conservators rely on it to protect their collections. Very thin (.001), acid-free tissue with a 3% calcium carbonate buffer added. Buffering agent will help neutralize acids and prevent acid migration to the objects that the tissue is used to protect. Buffered interleaving tissue extends the life of paper, photographs, textiles, and artifacts. Use for most photographs, including black & white, color & albumen prints. Available in packages of 100 sheets or rolls.