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Old 08-21-2020, 10:16 AM   #13
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Join Date: Oct 2015
Location: Bonita, CA
Posts: 1,338
Default Re: Removing oxidation from NOS radiator core

Also a phosphoric acid diluted with water will work great. That was the reason for using coke in the post above. You can find some in the paint department of any Home Depot. Also great for general de-rusting. Light oxidation is ok to leave, just shoot it with a light coat of some black lacquer. The residue left behind (phosphoric coating) will actually prevent further oxidation.
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