71029 red oxide primer from cloverdale pain is the best thing to paint the bare steel with and then use a compatable top coat, doesnt matter what you use on top, with the 71029 primer i can paint a piece of steel, leave it out in my backyard for years without a top coat and it wont rust at all
best primer out there imo
i go through 5gallons of it every couple weeks
pricey but worth it
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