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1863-1C Indian Head Proof?
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<p>[QUOTE="desertgem, post: 3027322, member: 15199"]Here is the MSDS for it, but the specific ingredients are not listed. Used as specified, it does not harm the copper based coins, and only reacts with the chemical damage to lessen it. It doesn't claim to remove all corrosion, but it does what it can safely. It has a near neutral pH, so there is no color change of the coin metal as caused be acidic compounds. I have used it from the beginning and have varying degrees of success, but all such coins sent to PCGS and NGC were slabbed clean of any mention. I personally recommend it, and the inventor BadThad is a long time member here. IMO Jim</p><p><br /></p><p><a href="https://www.wizardcoinsupply.com/old/files/images/Verdi-Care-SDS.pdf" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.wizardcoinsupply.com/old/files/images/Verdi-Care-SDS.pdf" rel="nofollow">https://www.wizardcoinsupply.com/old/files/images/Verdi-Care-SDS.pdf</a>[/QUOTE]</p><p><br /></p>
[QUOTE="desertgem, post: 3027322, member: 15199"]Here is the MSDS for it, but the specific ingredients are not listed. Used as specified, it does not harm the copper based coins, and only reacts with the chemical damage to lessen it. It doesn't claim to remove all corrosion, but it does what it can safely. It has a near neutral pH, so there is no color change of the coin metal as caused be acidic compounds. I have used it from the beginning and have varying degrees of success, but all such coins sent to PCGS and NGC were slabbed clean of any mention. I personally recommend it, and the inventor BadThad is a long time member here. IMO Jim [url]https://www.wizardcoinsupply.com/old/files/images/Verdi-Care-SDS.pdf[/url][/QUOTE]
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