Franklin Nigel Stein
Very well Known Member
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The main ingredient of BKF is Oxalic Acid (OA), a very strong corrosive acid. With vintage cymbals (I'd say early 60's and older) I wouldn't get even near it. People use it all the time, but there are other options. Ok, it might take longer to clean it, but at what cost? There are reasons why Zildjian, Paiste, etc. don't sell cleaners with OA in it.
According to a hazardous substance fact sheet:
(From .pdf above: Exposure to Oxalic Acid can cause headache, dizziness, nausea and vomiting, convulsions, coma and even death.)
Ah my old friend MSDS. I wouldn’t use that either.
edit - sorry. It was late. I shouldn’t assume.
Material
Safety
Data
Sheet
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