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<p>[QUOTE=&quot;mrjason71, post: 2990588, member: 90347&quot;]I&#039;d love to chemically remove my spots. What chemical is the question. I must admit I didn&#039;t have high expectations when I started this thread. I have read through every one I can find and really haven&#039;t seen any chemical advice. I&#039;ve read some scientific papers on the subject and they talk about mechanical removal and then preserving with benzotriazole. They talk about keeping coin or artefact away from sulfur gas emitting materials like paper and rubber, etc. But NCS has a chemical means. Perhaps it is something they concocted. Perhaps not.</p><p><br /></p><p>And regarding each spot needing to be evaluated. There are lots of spots that can be removed with EZ-est. I&#039;d say that those coins with spots remaining after a dip in EZ-est are the ones I&#039;m talking about. Seems to me these spots are all the same. These are the ones I speak of. They definitely vary in how deep they go and how long they&#039;ve existed and how far they&#039;ve spread but they seem to all be of the same nature. Anyway I do appreciate your thoughts.</p><p><br /></p><p>Thanks[/QUOTE]</p><p><br /></p>

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