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<p>[QUOTE=&quot;desertgem, post: 1345262, member: 15199&quot;]The intercept process uses a chemically reactive copper material to combine with contaminant materials. And this is a well accepted preventative. The problem is that you do not know when the material has fully combined with contaminants and is no longer active. The time will depend on your environmental levels, and may be longer than your life expectations, but&nbsp; when the end of the chemical activity occurs, you just have to buy a new album, as it is not a replaceable liner. It really doesn&#039;t act as a barricade or such, it is a sacrificial copper source more active than your coin&#039;s surface.[/QUOTE]</p><p><br /></p>

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