Mylar Envelope

Besides the codex, we also encounter pamphlets, limp paper bindings, newspapers, etc. Sometimes these materials have some damage, but do not warrant intensive repair. In those cases, we can often provide support by encapsulation in a Mylar envelope. This envelope enables you to view the materials, remove them for handling, and keeps them protected and flat (with a 20 or 40 point board for support).
This particular book was stapled at the spine. The staples had rusted away, but the pages were still collated and in tact. The book had also been stored folded.

I cut a piece of board to the exact size of the book, and constructed the Mylar envelope. I began by folding a piece of Mylar in half and sharpening the fold with a bone folder. I put this fold into the mounting press. Then I used the crisp edge to cut the next side. I put the book and board between the Mylar sheets to measure the final side (the thickness of the materials must be accounted for). After removing the object, I cut and pressed the third side. The forth side was also trimmed, but left open so the object can be removed. This is the end result.