Message:

<p>[QUOTE=&quot;JMGallego, post: 2666329, member: 35622&quot;]Great clarification, thanks.</p><p><br /></p><p>Yes, it is still there but cannot see it because it is a very thin film. I have, somewhere, the thickness of the film, I will try to locate it.&nbsp; </p><p><br /></p><p>In an indirect way, you can see the effect of the BTA. If you put a small drop of distilled water on the surface of the treated copper coin you will see that the drop is almost a small sphere, not oval, or smears, this is the hydrophobic effect of the BTA on copper.&nbsp; I have some photos from research/test articles showing this effect, I will try to locate them too.&nbsp; However, I can see that effect on the coins I have conserved.[/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