Polyester 'Folder' Sleeves

Our Polyester (Mylar) Folder Sleeves are made from crystal-clear, 4 mil archival polyester, approved by the Library of Congress for indefinite archival storage. We use Dupont inert Melinex or a suitable equivalent. Our polyester has passed the Photo Activity Test (P.A.T.) which means that items put in the sleeves with not react with polyester material. 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). 
We stock four categories of 'Folder' Sleeves:
First Day Covers
Negative Strips
Movie Posters
Digital Photo
These sleeves are sealed on one long side, which allows for easy document insertion and retrieval.  Once inserted sleeved contents remain in place due to the static-cling nature of polyester material.

Click on links above or Scroll down for sizes and pricing.

Acid-free Polyester #6 Envelope Sleeve
First Day Cover US #6 envelope. 'Folder' Sleeve.
3-7/8 x 6-7/8". 4 mil POLYESTER.
Indefinite Storage.

Base SKU:sfdcus6petf

Acid-free Polyester #10 Envelope Sleeve
First Day Cover
US #10 Envelope 'Folder' Sleeve.
4-1/2 x 9-7/8". 4 mil Polyester.
Sealed on one long side.
Indefinite Storage.

Base SKU:sfdcus10petf

Polyester Protectors for 35 mm Negative Strips
Negative Strip Protectors. 1-9/16 x 9-1/4".
Holds 4 & 6-Frame 35mm Negative Strips.
Made from 4 mil Polyester (Mylar).
Comes with 1/4" lip.

Base SKU:s35mmrlip

120 Negative Strip Protectors
120 Negative Strip Protectors. 2-9/16 x 10-1/16".
Made from 4 mil Archival Polyester.
Holds both 3 & 4-frame 120 Negative Strips.
1/4" lip.

Base SKU:s120mmrlip

Acid-free Polyester Lobby Card Sleeves
Lobby Card/Print 'Folder' Sleeve.
14-1/4 x 11-1/4". 4 mil Polyester.
Sealed one long edge.
Indefinite Storage.

Base SKU:s1114f

Acid-free Polyester Jumbo Lobby Card Folder Sleeves
Jumbo Lobby Card 'Folder' Sleeve.
17-1/4 x 14-1/4". 4 mil Polyester.
Sealed one long edge.
Indefinite Storage. **NEW**

Base SKU:s1714f

Acid-free Polyester Sleeves for 16 x 20 prints.
16 x 20 'Folder' Sleeve.
20-1/4 x 16-1/4". 4 mil Polyester.
Sealed on one long side.

Base SKU:s2016f

Acid-free Polyester Sleeves for Window Card Posters.
Window Card Poster 'Folder' Sleeve.
22-1/2 x 14-1/2". 4 mil Polyester.
Sealed on one long side.

Base SKU:s2214f

Acid-free Polyester Sleeves for Rock & Personality Posters.
Rock & Personality Poster 'Folder' Sleeve.
28-1/2 x 20-1/2". 4 mil Polyester.
Sealed on one long side.

Base SKU:s2820f

Acid-free Polyester Sleeves for Half Sheet Posters.
Half Sheet Poster 'Folder' Sleeve.
28-1/2 x 22-1/2". 4 mil Polyester.
Sealed on one long side.

Base SKU:s2822f

Acid-free Polyester Insert Poster Sleeves
Insert Poster 'Folder' Sleeve.
36-1/2 x 14-1/2". 4 mil Polyester.
Sealed on one long side.

Base SKU:s3614f

Acid-free Polyester Sleeves One Sheet Posters.
One Sheet Poster 'Folder' Sleeve.
40-1/4 x 27-1/2". 4 mil Polyester.
Sealed on one long side.

Base SKU:s4027f

Acid-free Polyester Sleeves One Sheet Posters.
One Sheet Poster 'Folder' Sleeve.
41-5/16 x 27-1/2". 4 mil Polyester.
Sealed on one long side.

Base SKU:s4127f

Acid-free Polyester Sleeves British Quad Posters.
British Quad Poster 'Folder' Sleeve.
40-1/2 x 30-1/2". 4 mil Polyester.
Sealed on one long side.

Base SKU:s4030f

Acid-free Polyester Photo Sleeves
Digital Photo 'Folder' Sleeve for
8-1/2 x 11" Images.
11-1/4 x 8-3/4". 4 mil Polyester.
Sealed on one long edge.

Base SKU:s811f

Acid-free Polyester Photo Sleeves
Digital Photo 'Folder' Sleeve for
9 x 12" Images.
12-1/4 x 9-1/4". 4 mil Polyester.
Sealed on one long edge.

Base SKU:s912f

Acid-free Polyester Photo Sleeves
Digital Photo 'Folder' Sleeve for
12 x 18" Images.
18-1/4 x 12-1/4". 4 mil Polyester.
Sealed on one long edge.

Base SKU:s1218f

Acid-free Polyester Photo Sleeves
Digital Photo 'Folder' Sleeve for
18 x 24" Images.
24-1/4 x 18-1/4". 4 mil Polyester.
Sealed on one long edge.

Base SKU:s1824f

Acid-free Polyester Photo Sleeves
Digital Photo 'Folder' Sleeve for
20 x 24" Images.
24-1/4 x 20-1/4". 4 mil Polyester.
Sealed on one long edge.

Base SKU:s2024f

Acid-free Polyester Photo Sleeves
Digital Photo 'Folder' Sleeve for
24 x 30"
Images.
30-1/2 x 24-1/2". 4 mil Polyester.
Sealed on one long edge.

Base SKU:s2430f

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