I have had good luck with the Eastwood coating described above.
Best to sand-blast the parts, though, and use a few coats of the Eastwoods. Then assemble
It does not last for ever, but it can be dabbed on with a small rough paintbrush for occasional touch-ups.
What a cool car to be working on!! Have fun.
Doug Cook
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Rev. Douglas J Cook:
1996 Impala SS taking too much time and money from my Buicks;
1954 Special under restoration;
1924 Buick 4-cyl roadster.