I was most excited about trying this technique out at this recent raku workshop, as I’d only learned of it recently and I couldn’t find many photos online of it! I purchased two different brands of copper mesh scouring pads and then unraveled the pads and wrapped the copper mesh “socks” around ferric-chloride-dipped ceramics. I then bundled it all up in aluminum foil and saggar fired them (also known as the “baked potato” method).
Some tips:
If the ferric chloride is still wet, it will melt the copper mesh, so ideally apply it after the ferric chloride has dried. However, that means you can’t also use sugar for additional carbonization as it gets knocked off. If you’re feeling risky, you can daub some more ferric chloride atop the piece and sprinkle with sugar but it’ll then eat away all the copper in those areas.
The tighter the mesh atop the ceramic, the clearer the results. Really hug the vessel tightly for the most overall effect.
The resulting finish when taken right out of the foil looks like a hot mess due to all the ash produced - but after you rinse the ceramics off, their true appearance is revealed!
I’ve since learned that you can just buy rolls of copper mesh (so you don’t have to go the cutting-and-unraveling-scouring-pads approach unless you already have some on hand); I may play around with that moving forward! I really like the results I got from this process. In different areas, the copper mesh carbonization marks look like fish scales (or maybe dragon scales!), chainmail, webbing, fishnet stockings, or unraveling yarn. When the mesh only is in discrete spots, its marks also contribute to a layered, graffiti-like aesthetic.
Here’s the most mesh-marked piece of the batch, a small oblong vase:
Next, a small orb:
A weird little vessel I’m calling an oddgon:
And finally a larger, sideways orb:
