A couple years after buying my home I realized the previous owner had painted over the original color of my cast iron bathtub. After using a shower mat for too long, the paint peeled off the tub floor reveling the original color... PINK! No matter what I use for paint, I wouldn't expect it to last forever. That said, what kind of paint should I use? Is there a special purpose paint for this kind of thing? Also, is there anything special I should use to chemically remove what's left of the old paint? I'm not sure what chemicals might damage the original cast iron tub finish.
Thank you.