Ok folks, Don't get the idea that WD40 turns stuff green- It's just my lousy camera skills 
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I'll try to take a better pic later...
. I'll try to take a better pic later...
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The WD40 removes the white powder, it does not restore the aluminun, but the removal of the white powder is enough to save the badge.Comment
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For what it's worth..........
I would be very careful about leaving WD 40 on a plated medal. WD 40 is a penetrating oil. It does this very, very well. It is also known to damage or peel plating with long time application. This is a known sadness in the guntrade with nickel plated guns being damaged when WD40 eventually makes it's way between the plating and the base metal.
It's a wise dictum not to put anything on or do anything that is not reversable to valuable collectables. Usually a careful wash with a neutral soap and a thorough drying is all that's needed on medals. If you must a good wax such as Renaisance Museum wax will be sufficient.
Just a word of caution.
TonyAn opinion should be the result of thought, not a substitute for it.
"First ponder, then dare." von MoltkeComment
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