These POLYESTER PRINT & PHOTO SLEEVES are made from 4 mil archival polyester that has been approved by the Library of Congress for indefinite storage. We use DuPont inert Melinex® or a suitable equivalent. This material has passed the Photo Activity Test (P.A.T.) which means that this material will not cause deterioration or harm to items stored in it.

Polyester is a sturdy, crystal-clear material with a glass-like surface and archival properties that are approved by museums for indefinite storage (hundreds of years).
Mylar 4 x 6" Photo Sleeve
POLYESTER (Mylar) Sleeve.
4-1/4 x 6-1/8" 4 mil. NO flap.
Use for 4 x 6" Photos.
Indefinite storage.

Base SKU:s46r

POLYESTER (Mylar) Photo Sleeve 5-3/8 x 7-1/4"
POLYESTER (Mylar) Sleeve.
5-3/8 x 7-1/4" 4 mil. No flap.
Use for 5 x 7" Photos.
Indefinte storeage.

Base SKU:s525r

POLYESTER (Mylar) Photo Sleeve 5-3/8 x 7-1/4"
5 x 7" Postcard Sleeves.
5-3/8 x 7-1/4".
4 mil POLYESTER (Mylar). No flap.

Base SKU:s525r

POLYESTER (Mylar) Sleeve for Early Magazines
POLYESTER (Mylar) Sleeve
11-1/2 x 16-1/2". 4mil.
Use for Mini Poster/Early Magazines.

Base SKU:semrof