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Found 61 roosevelt with black crud, how to remove it
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<p>[QUOTE="Kentucky, post: 1657511, member: 33176"]Woah there. MEK is Methyl Ethyl Ketone whereas acetone is Dimethyl Ketone or Methyl Methyl Ketone (not a real name but just to be descriptive) so whatever you say about MEK goes also for acetone. There are lots of exotic organic solvents you could use on coins, if you happen to have them about. I bet THF would do a bang up job removing grease and oils, and I used to work in a place that used tank cars full. Main point being - all these solvents recommended for degreasing are organic solvents and have their precautions. Don't breathe these things too much (xylene is less volatile than toluene, hence a good reason to use it), don't work around any sources of open flame or you might make an ash of yourself.[/QUOTE]</p><p><br /></p>
[QUOTE="Kentucky, post: 1657511, member: 33176"]Woah there. MEK is Methyl Ethyl Ketone whereas acetone is Dimethyl Ketone or Methyl Methyl Ketone (not a real name but just to be descriptive) so whatever you say about MEK goes also for acetone. There are lots of exotic organic solvents you could use on coins, if you happen to have them about. I bet THF would do a bang up job removing grease and oils, and I used to work in a place that used tank cars full. Main point being - all these solvents recommended for degreasing are organic solvents and have their precautions. Don't breathe these things too much (xylene is less volatile than toluene, hence a good reason to use it), don't work around any sources of open flame or you might make an ash of yourself.[/QUOTE]
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Found 61 roosevelt with black crud, how to remove it
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