Hello, You can also get it from Hollinger Metal Edge: 3M® Double-Sided #415 Tape They also have Mylar (a.k.a. Archival Polyester Film) in a variety of sizes. Linda Zellmer -- Linda Zellmer Government Information & Data Services Librarian Liaison to Natural & Physical Sciences & Agriculture 415 Malpass Library Macomb, IL 61455 [log in to unmask] Phone: 309-298-2723 <callto:309-298-2723> Fax: 309-298-2791 <callto:309-298-2791> On Wed, Apr 18, 2018 at 4:21 PM, Susan Moore <[log in to unmask]> wrote: > Greetings! > > We ahve a map that we would like to encapsulate in Mylar. We've got the > Mylar that has been handed down from map librarians past put we don't have > any way of sealing the Mylar. At one point, they apparently used some type > of double-sided tape. Since this is a map from the 1890s, I'd like to do > right by it. What tape, if any, should we use to seal the Mylar. (And yes, > I'll leave some sections unsealed to allow for off-gassing.) > > Susan Moore > University of Northern Iowa > Cedar Falls, IA 50614 > [log in to unmask] >