I've been googling on how to clean green patina, or rather copper
sulfate oxidation from come metalic components. All I can find is how to
add it, not remove it! Evidently, this green substance is desirable for
certain applications, such as artwork. What can I use to remove it from
some copper hinges?
On Wed, 25 Jun 2008 09:21:41 -0400, somebody wrote:
There's copper cleaner used to clean pots/pans. Bar Keeper's Friend
should also work. Both can be found in grocery and hardware stores.
Both are very mild abrasives.
Follow directions. Use old toothbrush for tight spots.
The US Navy also used the powder mix for lemonade to clean the
unpainted steel floors. I don't know how it would work on copper.
This was back in the '50s, so I don't know if the current lemonade mix
is the same as then, either.
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