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Does it work on.......
very heavily coated, old brake dust? I have tried Maquiars all wheel cleaner, Car-Pro Iron-X and P21S gel. All to a good job of removing light or new brake dust. My rims seem to have old dust "baked" into them. I have tried adding light mild abrasive scrubbing as well. Gets them to about 85% of the result I want.
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