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Best Way to Clean Stranded Copper Wiring Before Soldering

I've found that coca-cola works wonders. Then a little distilled water to wash the crud away.

LOL, the Russians invented!!!!:rolleyes:

Coca-cola is loaded with CO2, as sodium bicarbonate AKA backing soda.
 
Phosphoric acid and a few others, too.
 
I'm saying that coke has that in it. You can clean chrome up pretty good with it and people have used it to clean the road after car accidents.
 
I'm saying that coke has that in it. You can clean chrome up pretty good with it and people have used it to clean the road after car accidents.

Very good point.
 
Great thread, thanks for all who contributed.
I have black oxide on my stranded copper boat trailer wiring.

Results of my tests:
1. hydrogen peroxide (3%): no effect
2. household ammonia (with surfactant): no effect
3. oxalic acid (Y-10 gel for cleaning fiberglass): no effect
4. phosphoric acid (Permatex Rust Dissolver Gel): black disappeared in a few minutes leaving strands a rosy pink color.

Nice thoughts on the H202 and ammonium hydroxide, but they didn't touch my oxide. Phosphoric acid is the way to go for me, unless I'm replacing the wires.
 
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