Message:

<p>[QUOTE=&quot;hotwheelsearl, post: 4993084, member: 75143&quot;]This doesn’t appear to be verdigris or PVC residue. </p><p>It appears to be actual corrosion. This is tough. You can use sodium thiosulfate to remove iron oxides, and hydroxide tends to work out alright for copper oxides.</p><p>The two pics below are before and after using hydroxide, thiosulfate, and vinegar.</p><p>[ATTACH=full]1199223[/ATTACH] </p><p>[ATTACH=full]1199224[/ATTACH] </p><p><br /></p><p>using harsh chemicals will strip all patina away, but it’s a sacrifice that you have to decide whether you’re willing to make[/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