Tarnished Copper Roofing

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Bill3752

Member
We accidently sprayed some brick cleaning chem (muratic acid based) on some copper roofing on a new construction job. Any one ever removed tarnish from copper?
 
Bill,

That cleaner should have cleaned the copper if it wasn't straight muriatic, not tarnished it. Was there a sealer on the copper that the acid may have damaged?

Celeste
 
I think I have heard that ammonia will clean tarnish from copper,'' toilet bowl cleaner''. I have heard of builders wanting the copper turned to look weathered, may be okay, but probably a slim chance.
 
Home owner wants copper to remain original. Talked to person yesterday who said to use 50/50 mix of gas and engine oil, followed by boiled linseed oil.
 
Euwww...don't forget to let us know how this comes out :)

Celeste
 
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