Message:

<p>[QUOTE=&quot;Colonialjohn, post: 3949359, member: 57741&quot;]THis is why I never push my copper cleaning product ... since the removal of Freon TF from the original Coin Care awhile ago we have currently CRAP on the market which indirectly leads to the current generation of collectors indicating there is no way to clean coins. Heard a rumor lately a common process used by TPG&#039;s in the restoration process is hydrogen peroxide probably in a Distilled Water Mix via an ultrasonic bath. Seems reasonable? In terms of my cleaner I was fortunate to work in a governemnt contract business that was forced to find eventually a subtitute for Freon TF which eventually was also BANNED from using this magic ingredient around 4-5 years ago based on a USEPA directive. The rest is history ... &lt;VVBG&gt;.</p><p>P.S. Not sure what you mean flow lines are microscopic? Theu are quite visible under a stereo microscope in the 20-40X range - ALWAYS. Buy one!</p><p><br /></p><p>John Lorenzo</p><p>Numismatist</p><p>United States[/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