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Old 03-11-2019, 12:42 AM   #5
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Join Date: Apr 2015
Location: Sweden
Posts: 2,497
Default Re: Cleaning corrosion off of NOS radiator core

Electrical contact cleaner is designed to remove oxide without hurting base material...
And there are sets with a cleaner/flush/corrosion protection.
Might cost a bit more then going for an acid...but should be safe..
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