Message:

<p>[QUOTE=&quot;DW-coins, post: 1308972, member: 33380&quot;]It&#039;s not so much that it will absorb water in the way a sponge will, it&#039;s more that metal can coordinate with water molecules on its surface. But here&#039;s why I wouldn&#039;t worry about that -- any fresh metal will quickly form oxides all about its surface that will actually protect the metal from further oxidation and if the coin is more than a year or two old, then the surface metal has been coated (if you will) with a complex of surface oxides. Like the example of rust on iron, if you leave the rust on the surface it will protect the metal beneath it from further oxidation and the only time you would want to remove the rust is when you&#039;re going to paint that now fresh surface. And coins will do something very similar after being introduced to air. Acetone will not remove this oxide layers on a coin since acetone is primarily an organic solvent and removes organics only. So as I mentioned earlier, I do not believe there is anything to worry about when using water on a coin that has been exposed to air for many years. However, this would not apply to a coin that has been &quot;dipped&quot; and the surface oxides have been removed.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in