Posted 4/22/2012 20:44 (#2349246 - in reply to #2349231) Subject: Re: Copper kettle cleaning question
central michigan
I used to work at a parts store and we sold Permatex 18E radiator cleaner. We would shake to bottle a little to make it foam and dip a dirty penny in it and would clean it up like new.. It was an acid base. Get some and put in a spray bottle and clean it outside.... Good luck