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 Replies: 37 / Views: 2,371 |
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Pillar of the Community
 United States
6451 Posts |
Pretty annoyed at this situation. The proof half dollar that I received today was in a half plastic flip taped to the invoice. During shipping, the right side of the obverse shoved its way out the open top and was wedged under the scotch tape. You can see the mark on the right side of the coin. I soaked it in acetone for a few minutes and even swirled it around, but the mark persists. Is there anything I can do to get this crud off the proof surface? I know that someone will invariably suggest returning it or complaining. That won't help here—the cool feature of the coin is an apparent collar clash. Definitely a keeper.  |
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Bedrock of the Community
 United States
24894 Posts |
From my experience, it seems that tape residue can be a bit resistant to acetone. Try a longer soak. It that doesn't take it off, start over on the latter with water, then jump ahead to xylene. Or a nonpolar solvent such as mineral spirits.
Inordinately fascinated by bits of metal with strange markings and figures
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Bedrock of the Community
United States
19111 Posts |
I've had no issue removing tape residue--if it's relatively fresh--after loooooong acetone soaks--upwards of days if warranted.
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Pillar of the Community
United States
7933 Posts |
Might also try going the other way on the polarity scale with isopropyl alcohol.
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Moderator
United States
94672 Posts |
 try a much longer soak first. |
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Pillar of the Community
United States
3634 Posts |
I agree with the others a longer soak in acetone may be needed. Several years ago I was given a couple hundred foreign coins which had all been taped to the pages in a photo album using clear packing tape. They'd been stored like that for at least 20 years, and were a sticky mess. I believe I ended up soaking them for a couple days, changing out the acetone several times, but it did eventually remove every trace of the glue.
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Moderator
United States
187565 Posts |
Ouch.  I agree, a few minutes is not enough. He may need an over night in a sealed container. If that works, remember to give him a good rinse with fresh acetone. |
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Pillar of the Community
 United States
6451 Posts |
Ok, I will give it a long soak.
Will alcohol interact with the coin surface? I am very cautious because this is a proof.
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Bedrock of the Community
United States
10472 Posts |
Is it tape residue that remained or did the tape actually mar the surface?
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Pillar of the Community
United States
6451 Posts |
  I don't know if the cloudiness is tape residue, or the result of the tape getting rubbed on the coin during shipping. Dropping it into a long acetone bath now. |
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Pillar of the Community
United States
6988 Posts |
Hope the longer soak works.....is it silver or clad ?
Side note I cut out a 72 KHD from a mint set which had that "haze" stuck to it from being in the mint film for 53 years...took a 2 week soak...boy it sure looks nice in my KHD album now..............Good Luck Brandm.
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Moderator
United States
187565 Posts |
Quote:
I don't know if the cloudiness is tape residue, or the result of the tape getting rubbed on the coin during shipping.   Quote:
Dropping it into a long acetone bath now. Good luck!   |
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Pillar of the Community
United States
2330 Posts |
That first picture looks awesome!
I wish I could take pictures that good...especially a proof!
Good luck with the soak!
smat
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Pillar of the Community
United States
6451 Posts |
Greasy, it is a clad coin.
After about 12 hours, there isn't much change in the haziness. But I am prepared to soak it for as long as it takes.
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Moderator
United States
187565 Posts |
I would give it a least 24. If you see any change, go longer with a fresh bath. If no change at all, then we have to assume it is a rub and not residue. |
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Pillar of the Community
United States
6451 Posts |
Disappointing report on this coin. After five days in pure acetone, there does not appear to be any appreciable reduction in the cloudiness.
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Replies: 37 / Views: 2,371 |
Posted 11/19/2025 12:47 pm
