Originally Posted by Gary RVRoamer
...You aren't sanding down through the underlying paint - just the clear coat.
Good suggestion, but it's easier said than done. Our colored base coat was so thin that by the time I had the clear coat sanded off, I was through the base coat in numerous spots.
One reason the clear coat peels is it wasn't applied heavily enough and wet enough. The underlying color frequently has the same problem, and it therefore can be very easy to sand through it.
You don't necessarily need to buy paint for the color coat beforehand, but I recommend trying to at least find a source for it before you start sanding just in case.