Quote Originally Posted by Orezona View Post
Robinhood, where did you find a penny that was made of copper? I haven't seen one years!
Any penny dated 1982 and earlier is 95%+ Copper.

Charlie: I agree. That reaction with the Wipeout indicates an harsh Copper chemical reaction. And I absolutely trust Robin’s testing. It’s a head scratcher to me as I looked at the MSDS as well. The chemicals alone, on paper, don’t constitute THAT reaction. But can’t argue the results. But the same applies for Kroil results. Of course, like I was saying earlier, the Kroil will STILL clean the Copper fouling by simply WEARING it down with every patch/brush contact, through chemical abrasion.