wet sand single stage acrylic urethane
Both these cars I painted in the last few years with single stage poly and painted outside under a car port in the evening with tarps put up and the cement wet down. After a month of letting them cure with several of those days in summer sun I wet sanded and buffed them. Any bad areas I would hit with 400 until the peel got shallow and then go to 800 and then 1000 or 1500. Then I would use 3M medium compound and if it swirled I would hit with Finesse. I used the cheap variable speed HF buffer that they put on sale for $29 now and then. First I used a cloth pad cleaning it regularly with a wire brush, then I switched to a foam pad with good results as well..... Still not perfect but great driver grade....
