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<p>[QUOTE=&quot;Burton Strauss III, post: 2845123, member: 59677&quot;]Bags are inert, but not air tight. Don&#039;t believe me? Put something square in one, and close the zipper almost all the way, then suck all the air out so the bag conforms to the shape. You can finish the seal while still sucking and have an almost perfect conformation. A few hours later, there will be more air in there.[/QUOTE]</p><p><br /></p>

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