Message:

<p>[QUOTE=&quot;physics-fan3.14, post: 2756413, member: 19165&quot;]This. </p><p><br /></p><p>Any detrimental changes from acetone result from the negative eye appeal of actually removing the stuff. If there was some organic buildup in an area, the area around it may have toned differently - when the gunk was removed, you&#039;re left with an untoned spot. There was a recent thread about an Ike where this happened. </p><p><br /></p><p>The other result may be that any PVC has already eaten into the coin. It isn&#039;t apparent until after the PVC is removed, but the damage has already been done. By conserving the coin with acetone, you&#039;ve stopped further damage - but you can&#039;t undo what has already been done. </p><p><br /></p><p><br /></p><p><br /></p><p>This can be a particularly horrifying experiment, but a very valuable learning tool. I highly recommend that highly contaminated coins have second or third acetone baths, to ensure everything is removed. Rinse afterwards with distilled water, and then another quick acetone dip. Allow to thoroughly dry before reholdering. </p><p><br /></p><p><br /></p><p><br /></p><p>The length of the soak, and the amount of acetone required, will depend largely on how the coin was stored. An immaculately stored coin won&#039;t need any acetone at all - something stored in some dodgy aftermarket holder may require significant help from the acetone.[/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