Originally Posted by wedley2
to sand the original paint off the car?
id start wit 320, 2k is way fine...
He is talking about wet sanding which you do to remove small scratchs or orange peel.
Ok to answer the question you can you 1500 or 2000 grit paper to wet sand the car. Just make sure you keep the sand paper and the paint surface very wet to prevent scratching/sanding through the clear coat. 3M products are some of the best out so thats what I would use. When you buff the car just make sure you don't keep it on any edges or corners for very long or you will burn through the paint.