Message:

<p>[QUOTE=&quot;Bryan Jellick, post: 4745000, member: 114306&quot;]It is possible that the metal is breaking down in structure. Was it buried when found? Bronze left too long in moisture( More than a year) can start to break down and corrode. It&#039;s a balance. Sometimes you gotta say this is too much fiddling around. Think of the hours wasted screwing up some old bronze. It&#039;s not the most stable of alloys.</p><p>The sequi stuff is good. I use less 1 or 2% inain small glass Tupperware and change water&nbsp; daily. I mean whynot it&#039;s just distilled water and it seems to work? One can see the BD shrink then disappear. The rest of the coin seems fine. It&#039;s basically an alkali that binds up the cuprous metal. That&#039;s why you keep changing the water because negative ions will continue to draw salts away from the surface....I think. Anyways keep the coins wet for a week with distilled water. I&#039;ve seen bronze coins can become bluish in patina but I think it&#039;s not major. I usually am only trying to help a coin that is getting the BD. Then hopefully have it slabbed and returned. Anyone know if BD can continue in a slab, even though it&#039;s airsealed?[/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