I’m looking for tips on making prismacolor pencils adhere to copper.
In my intro to jewelry at mica, we used prismacolor pencils to
enhance chemical patinas on copper; it works well on those pieces.
However, I am having difficulty getting the pencils to adhere to
roller-printed or smooth copper. I’ve tried roughing the surface with
sandpaper and steel wool? I don’t have access to a sandblaster. Help.