Message:

<p>[QUOTE=&quot;BadThad, post: 1820022, member: 17261&quot;]Doug - As you probably know, PCV residue contains hydrochloric acid. It reacts with copper to form copper chloride = verdigris.&nbsp; While I do agree that &quot;verdigris and PVC residue are different things&quot;, the acid in the PVC residue creates verdigris (copper chloride type) - which is why the residue is always green.</p><p><br /></p><p>I just wanted to try to make that clear for other people.[/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