A technical dictionary of printmaking, André Béguin. Back to Main Page of the "Printmaking dictionary" Acid-free Describes a paper which has a pH value of 7.5 and indicates that the paper is archival. Used with particular reference to paper. Acidfree papers and borads are recommended for fine printmaking and framing. Product Information Polymetaal site "paper": NL, DE, FR, ES, UK Back to Main Page of the "Printmaking dictionary"