Envelopes Button & String

(with new improved side seam design)

Button & String Perma/Dur® envelopes provide acid-free and lignin-free storage for documents, pamphlets, clippings, etc. Manufactured from sturdy Perma/Dur® stock, each is buffered with 3% calcium carbonate. Our new side seam construction helps prevent marring of items stored within and allows for even stacking and filing. P.A.T. tested, neutral pH adhesive is used to seal seams. Button and string enclosures provides security. No adhesive on flap.

(Picture C on Photo)