Rinse it every day

This is the LH wing before polishing, you can see all the scratches and loads of small stone chips.
The entire car was heavily swirled and had been touched up (Poorly) in the past, this I found out when claying the car as it pulled the majority of them off.

This is the RH wing, paint where scratched was prepped, then touched up, then left for about a month to cure (The weather was CR*P!), then I used megs QD and 2000Grade wet&dry, (2500 is better) to remove the excess paint down to a flush finish.

This is the wing after polishing up.

Hope that helps