Remove Residue On Medal - Page 2 - Coin Community Forum

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Author	Replies: 19 / Views: 2,680	Page: of 2

MOS0239 Pillar of the Community 1110 Posts	Posted 10/20/2020 09:35 am That what I was afraid of, baked into the surface. Report this Post to the Staff
Coinfrog Bedrock of the Community United States 94367 Posts	Posted 10/20/2020 09:42 am Surface appears etched, as feared. This is pretty much a goner. Report this Post to the Staff
Zurie Pillar of the Community United States 5673 Posts	Posted 10/20/2020 1:07 pm Since most of that green came off with acetone, it's likely PVC damage from the foam wrapper. The PVC corroded the surface below the green spots, and there's nothing you can do to salvage that. That white residue is probably left over from what was dissolved in the acetone. If I were you, I would probably soak the entire medal in acetone for a few minutes, then rinse in acetone again to get rid of the residue. You'll be left with many tiny spots of corrosion, but at least it won't be green or white. And make sure the acetone you're using is pure acetone. Edited by Zurie 10/20/2020 1:10 pm Report this Post to the Staff
Big-Kingdom Pillar of the Community United States 1667 Posts	Posted 10/21/2020 3:45 pm that insert is a plasticized foam. I really would have started with distilled water soak and then rolling cotton swabs across the area gently trying to pick up the green. And only moved to acetone if that didn't get anywhere. My concern is there is a finish over the bronze the coin the acetone (a solvent) might deteriorate. now that you've removed some green, it appears pitted where the green was. there's no fixing that unfortunately. you can stop it from getting worse, that's about it, the damage is done. Edited by Big-Kingdom 10/21/2020 3:48 pm Report this Post to the Staff
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