I had a whole sheet of .028 copper cut into a half dozen different print sizes. The second print of the flowers above is on copper.
In this case I was trying for a finish that would make the rust stand out a little more. Most of my alternative printings are tests for eventual workshop demonstrations.
Some finishes work really well and look fantastic. Others,not so good.
Have not tried brass to date as I am still recouping from the cost of the full sheets of copper,aluminum and stainless.
I think the sheet copper was around $6.50 a square foot plus the cutting charges,compared to a $1.00 for aluminum.
Thanks for the link as I am interested in comparing their square foot pricing to mine.
The 5mil or .005 copper you mention is pretty thin almost like a foil. It still should work with a proper backing attached after printing.
Thats about 80% thinner then my copper. Athough printable it can be very hard to handle without damaging.
I just looked at your link for the copper supplier. 2 -12x12 22 mil copper sheets for $44.99,ouch! At $22.50 a square foot thats a little pricy.
As expensive as copper is these days 22 mil is probably not necessary. The 16 mil and 10 mil they offer would work fine.
I promise this is the last one.
Another stainless print with Krylon stone pebble and topcoated with Krylon satin.
The first one I did came out really dark with the Booksmart metal profile. I adjusted the brightness on this one accordingly.