I posted this in the Hercus forum but I know that forum is a no go zone for some members so I will post my question again here in a general form to seek a wider viewpoint.

I have a coolant lube tank made of painted steel that fits neatly under my mill that has been let go rusty. I have passivated the rust using electrolysis and tannic acid and now would like to repaint it. My question is what sort of paint if any should I use, Epoxy, Enamel, Polyurethane, Cold Galv . . . . .?

I though about replacing the whole thing with a plastic tank but the steel tank already has chip/fuid separator panels and pump supports built into the tank.

Thanks.

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