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<p>[QUOTE=&quot;GDJMSP, post: 5245778, member: 112&quot;]No, absolutely not. A couple things, the gasses put off by super glue would be harmful to the coins. And sealing the edges wouldn&#039;t do any good anyway because the plastic itself is air permeable - air can and will go right through the plastic itself.</p><p><br /></p><p><br /></p><p><br /></p><p>That kind of depends on the specific sets and the mint packaging. The sets you posted in post #7, those are kind of doomed by the packaging because of the paper inside the packaging. That paper contains sulfur and the colored inks other harmful chemicals. And all that is right inside the outer plastic case - trapping everything inside it with the coins. What the mint calls &quot;a beautifully designed package&quot; - well, it&#039;s that &quot;package&quot; that&#039;s harmful to the coins. </p><p><br /></p><p>If one wishes to slow down toning then proper storage methods have to be applied. That means no paper, no cardboard, no anything except inert materials can be anywhere near the coins or kept in the same storage container, safe, SDB, or however wherever you keep your coins. And inside the container where you keep your coins you have to keep rechargeable silica gel packs to keep humidity as low as possible, and you must store them in an area where the temperature remains pretty much constant - cool and dry.[/QUOTE]</p><p><br /></p>

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