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2034Guthrie Posts: 3
11/26/2017
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In my collection a lot of my comics have off white or slightly yellowed boards with bags. Would changing to new bags and using new acid-free boards help to keep comics in better condition over time or not worth the effort and cost?
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Defiant1 Posts: 720
11/26/2017
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If they aren't Mylar or Mylites, old bags start to break down after awhile. They'll give off acidic gases that can shorten the life of your comics. The acid-free backing boards start turning acidic also. One key indicator is if they smell like plastic inside the bag. Yellowing is a sign that they have gone past their normal life span. Mylar tends to not turn yellow. I've seen it get cloudy/hazy, but not yellow.
If you want your comics to last as long as possible, you should probably rebag them and swap out the boards also. in all honesty though, the comics can last for many years in old yellow bags. Most collectors would swap them out rather than have any damage occur. It really depends on how many generations you want them to last.
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