I have gotten to the point in the bathroom redo that we need to redo the tub. Do I just use regular house paint on the outside of the tub? I was thinking of using rustoleum primer, then spraying some kind of appliance paint on the exteior. Any info would be great since I never had to restore a tub before. I think whoever owned the tub before just used house paint but I figured that there is something better to use.