Paper is made from trees. A tree's cellulose material, LIGNIN, inevitably turns the paper into ACID over time. Most people know that a bag will help protect a comic but don't know why. Exposure to open air greatly accelerates acid decomposition, but even with the best bags money can buy, your comics will still turn yellow then brown and eventually crumble into tiny brittle shards that disentegrate into the wind, completing the cycle of life by fertilizing the growth of new trees. It's a poignant love story. Acid loves your comics so much that it eventually destroys them so no one else can have them.

You can prolong the life and current condition of your comics by absorbing acid and other byproducts of decomposition, and preventing acid migration by using MICROCHAMABER PAPER. Space sheets every 3 or 4 pages plus one sheet on the inside front and back covers, and one between comic and backing board. One is better than none, but tests show every 3-4 pages is the sweet spot, with every page being ideal. If you must use sparingly I suggest starting with inside cover and one in the center page, and a third for the inside back cover. That's 3 where you'll get the most value. If I had 3 more to use I would do 2 more interior pages and one between comic and backing board. More than that I would say depends on the comic's value.

Consider using Mylar bags with 300x the protection of poly bags from penetrating gases and last over 100 years without losing that protection. It's hardly a comparison. You save money over the long term and avoid handling the comic just to change bags. Remember even with mylar protection the lignin in the paper pulp is turning into acid. The damage is happening from inside the comic, and the rate is excellerated when exposured to air. Mylars seal it from the air and the microchamber paper will absorb the naturally generated acid.

Please specify the width you want in measurements (preferred) or by age of the comic. You can also ask for exact dimensions. Consider how you want the paper to show. Options are inside edges, matching edges, or just beyond edges (ideal). Please note comics come in various sizes even among the same age.

I recently discovered about 100 or so (unbagged) comics from the 1950's "buried" in my grandmother's storage closet that were in surprisingly good condition. She lives in dry west Texas. I know that's every collector's fantasy and it lived up to the expectations by the way. Judging just on the quality of the paper and not cover tears etc, maybe 5-10 of them would grade 5.5 - 6.0 and the rest around the 4 range. I loved finding them, especially since I was told she threw out my dad's old comics. But it also gives me a benchmark for acid degradation under ideal unbagged conditions. Ofcoarse I immediately put them in 2 mil mylars, which are also great for keeping slobber from getting on the comics. I've got a sweet QUADRUPLE FRAME with 4 pre-code titles from the same month. Right now I'm doing a test on some to see how much acid I can remove in one year by comparing the used papers with new paper. I will update my findings.