Archival Armor®
Polyester Comic Sleeves 

We created the Archival Armor® trademark when we began making our 4 mil Polyester (Mylar) Comic Sleeves in-house. Having a machine built for that specific task changed our position from a re-seller to a manufacturer. We expound upon this in our “Products We Make” category. 

The topic covered in this article is specifically about a unique new style of Archival Armor® sleeves we developed for comic book collectors - the “Beaded Flap Style.”


Comic Book Collectors are some of the biggest purchasers of Mylar Comic Bags. Although the comic book industry has had a few slow periods, comic collectors are still purchasing, and many view their purchases as commodities. That said, they are also some of the topmost believers in collection protection. Comics in comic books stores or comics at shows almost always  come with a bag and board – albeit maybe not top-quality bags and boards. Store owners and dealers leave that up to the collectors to upgrade if they choose to upgrade.

Another collection protection practice  that is popular with collectors is Comic Book Grading. It became a favored trend for two reasons. First, it guarantees to future buyers that the graded book is in the condition that is noted on the slab and is worth the price that the seller is asking for it. Second, it encapsulates the comic book so that the value of the book cannot change over time.

Polyester (Mylar) Comic Book Sleeves come with their own guarantee. The material we use for our comic book sleeves – DuPont inert Melinex® (or a suitable equivalent) is guaranteed by the Library of Congress as safe for indefinite storage (100’s of years). The material has also been certified by an independent lab as being safe for indeterminate storage. There is nothing in this grade of Polyester that will cause harm or alter the composition of items stored in it.

As the greatest supporters of comic book protection, we decided to create an alternative, safer storage for comic book collectors. Making the new style sleeves from 4 mil polyester, instead of 2 mil was the first step. The second was to create an alternative style flap. We refer to it as a beaded flap. Instead of having a flap that was merely an extension of the back of the sleeve, we heat welded a third piece of material on one edge of the open end. This created a flap that did not require folding and creasing or even taping closed.

These sleeves cost a little more than the fold-over flap sleeves, but it does save the collector time because there is no folding, creasing and taping needed.
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