Can masonry paint be painted over hammerite?

Question:any takers? and if not - why not? / if so why so?

thanks all

Answers:
i can't recall having done it, but i would think it would be ok.
if there is any existing rusty areas, it will bleed through if using a water based paint (though some do have excellent oppacity), you'd be fine with an oil based masonary paint though!