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Oh no!!!! Is this what it looks like?
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<p>[QUOTE="Co1ns, post: 4832626, member: 87765"]Both lye and sodium sesquicarbonate will strip patina given a long enough soak in strong enough solution, the latter will take longer to do so. Distilled water definitely the safest option.</p><p><br /></p><p>On other hand I have seemingly removed BD without any damage to patina/discolouration after a quick lye soak. Definitely not something I'd recommend experimenting with on a valuable coin, but definitely something I'll keep experimenting with on less valuable ones. </p><p><br /></p><p>Interesting about deionized water, might be more effective on crusties too.[/QUOTE]</p><p><br /></p>
[QUOTE="Co1ns, post: 4832626, member: 87765"]Both lye and sodium sesquicarbonate will strip patina given a long enough soak in strong enough solution, the latter will take longer to do so. Distilled water definitely the safest option. On other hand I have seemingly removed BD without any damage to patina/discolouration after a quick lye soak. Definitely not something I'd recommend experimenting with on a valuable coin, but definitely something I'll keep experimenting with on less valuable ones. Interesting about deionized water, might be more effective on crusties too.[/QUOTE]
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