And people DRINK this stuff!!?? :)
-----Original Message----- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Larry Sent: Saturday, February 22, 2014 9:17 AM To: topband@contesting.com Subject: Re: Topband: Control cable black conductors Phosphoric acid is still listed. 73, Larry W6NWS -----Original Message----- From: Kenneth Grimm Sent: Saturday, February 22, 2014 7:51 AM To: Tom W8JI Cc: Dave G4GED ; topband Subject: Re: Topband: Control cable black conductors Is it phosphoric acid that gives Coca Cola its peculiar cleaning ability? I no longer can imbibe cola drinks due to a very annoying allergy, so I can't check a label to see if it is listed. I do know that Coke will clean oil deposited on your windshield when commercial windshield washing liquids just cause it to smear...so it has something in it that that may work quite well, and without turning your hands red! 73, Ken - K4XL On Sat, Feb 22, 2014 at 7:38 AM, Tom W8JI <w...@w8ji.com> wrote: > All the other 4 conductors are bright clean copper when stripped. >> Could anyone tell me why some insulated copper conductors turn black >> in this way and whether there's a better way of cleaning it off. >> > > > Water inside the insulation plus sulfur and/or irons that formed > copper sulfide or covellite. > > I've been successful using phosphoric acid. It is sold as a clear > liquid wire or mag wheel cleaner around here. You'll know it by how > red and painful it turns your hands. > > > > > _________________ > Topband Reflector Archives - http://www.contesting.com/_topband > -- Ken - K4XL BoatAnchor Manual Archive BAMA - http://bama.edebris.com "Show me a politician who is poor, and I'll show you a poor politician." - Carlos Hank González _________________ Topband Reflector Archives - http://www.contesting.com/_topband _________________ Topband Reflector Archives - http://www.contesting.com/_topband _________________ Topband Reflector Archives - http://www.contesting.com/_topband