Message:

<p>[QUOTE=&quot;singig, post: 4591133, member: 93672&quot;]The chosen method depends of the coin surface type :&nbsp; for the ones with green <u>fragile patina</u> (like the Vespasian&#039;s dupondius) I use only water , bamboo sticks , a metal pick and wax. If the patina is quite strong I use also a plastic brush.</p><p><br /></p><p>The only acid solution I use is apple cider vinegar , I found that is less aggressive for the coin than the lemon juice (as example).&nbsp; I use vinegar only to remove hard encrusted deposits from coins with <u>strong metal surface</u>(like the A.Severus sestertius), you have to test before how the coin reacts for 30 minutes , if the results are good go for 2 hours. After 2 hours I use bamboo sticks or the metal pick to remove the encrusted dirt , plus brushed under water. I repeat the process for as long as necessary.[/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