[Shop-talk] Want to corrode copper fast.

[Jeff Scarbrough]

On Thu, May 22, 2014 at 8:33 PM, Karl Vacek <KVacek at ameritech.net> wrote:
> A copper guy once told me of a big job he'd just finished and the boss had
> heard that horse urine gave the best patina, so they had to mop several
> drums of the stuff onto new copper ornamentation atop a huge building in
> downtown Chicago.  He said it did work.

So, there's a use for Iron City beer after all...