50 Mylar Archives 4 mil STANDARD HEAVY DUTY Comic Book Bag Sleeves E.Gerber 725R
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Each E.Gerber Archive Standard size 4-Mil Mylar sleeve 7-1/4" x 10-1/2" + two 7/8" Non-Foldable Flaps fits comics from 1970âs-1990's. Mylar is also the most stable plastic, with zero off gassing. It does not absorb moisture like poly bags, and it is 100 times more resistant to the diffusion of oxygen! Use the material specified by the National Archives, the Library of Congress, and preservation experts around the world! Thanks to Mylar, the strongest plastic available with 1/3 the strength of steel, you'll get protection from:Features Humidity Volatile poly bag breakdown Acid migration Oxygen decomposition Insects Ultra-violet fading Mold and mildew Oils and greasesMeasurements 50 Pack 7-1/4" x 10-1/2" plus 1-1/2" flap 4 mil thick Mylarâs with two 7/8" Non-Foldable Flaps
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