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Old 01-28-2022, 11:54 AM   #3
1952henry
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Join Date: May 2010
Location: North Dakota
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Default Re: Painting an aluminum radiator?

Go to a paint store and get some alodine. It is a conversion coating which prevents corrosion, and more importantly for you, acts as a primer. It leaves a very thin film. Thinned black paint would work over this, test for compatibility. Eastwood does or did have "soecial" radiator paint.
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