Posted 11/19/2023 2:47 pm
Quote:
1.) I know to use pure acetone from a hardware store. How long should I keep it in for?
2.) I assume I can let the coin air-dry after taking it out? Should I swish it around in the acetone or just let it sit?
3.) Will the acetone mess with the faint brown toning on the obverse? I'd like to try and keep that on there, it's just the green that I would like to get rid of.
Does anyone have any other tips/tricks that might be helpful? I'd love for this coin to be a long-term highlight of the collection and I want to care for it properly.
1.) I know to use pure acetone from a hardware store. How long should I keep it in for?
2.) I assume I can let the coin air-dry after taking it out? Should I swish it around in the acetone or just let it sit?
3.) Will the acetone mess with the faint brown toning on the obverse? I'd like to try and keep that on there, it's just the green that I would like to get rid of.
Does anyone have any other tips/tricks that might be helpful? I'd love for this coin to be a long-term highlight of the collection and I want to care for it properly.
Here's what I would do (have done):
1. Have two clean, glass bowls available (with flat bottoms).
2. Place the coin in one of the bowls and add the pure acetone until the coin is covered. Let stand for two to three minutes. Gently swish.
3. Flip coin over. Let stand for two to three minutes. Gently swish.
4. Completely soak a Q-Tip/Cotton Swab in the acetone. Gently swab remaining/visible green areas with Q-Tip.
5. Place coin in second bowl and rinse with acetone.
6. Remove the coin from the acetone. The coin should dry quickly - DO NOT rinse with other liquids (e.g., water) - acetone won't leave spots, but other liquids might. (I tend to hold the coin by its edge for a few seconds to let it air dry.)
I've successfully used this method to remove PVC residue from a number of coins.
Assuming the toning is natural, the acetone will not disturb it.
Collecting history one coin or medal at a time! (c) commems. All rights reserved.
