A couple of other things.... -You can simply sand the copper down to get the patina off and paint directly. - oil paint uses oxygen to dry and metals like lead draw it into the mix. You can even add metal to a paint medium (siccative). In this case , the copper itself, rather than reoxidize, draws oxygen into the paint. - copper prevents microbes from growing that eventually destroy paintings.
A couple of other things....
-You can simply sand the copper down to get the patina off and paint directly.
- oil paint uses oxygen to dry and metals like lead draw it into the mix. You can even add metal to a paint medium (siccative). In this case , the copper itself, rather than reoxidize, draws oxygen into the paint.
- copper prevents microbes from growing that eventually destroy paintings.
Gord MacDonald Can you expand on the latter part of your second point? Thank you, very helpful. I’m interested in oil painting on a copper panel.
Underrated
Exore Golgumbaz
Which yellow pigment interacted with the copper? Lead tin yellow?
Thank you, it was interesting and informative.