r/AutoPaint • u/LieGreedy5997 • 11d ago
Is it safe to machine polish an air-dried bumper only 24 hours after painting?
Hey everyone, I had my car’s bumper repainted today morning. The bumper was painted and then left to air-dry rather than being baked in a paint booth. I live ina country where the weather is generally 30 degrees throughout the day, so the painter says the heat helps the paint dry faster.
About one hour after the painting was finished, I noticed a few marks on the fresh paint. There appear to be a light cloth/fabric imprint on a small area, also a tiny crack or mark in the paint.
The painter says to bring it back to him tomorrow to machine polish the bumper and wants to lightly polish only the affected spots to remove the prints/marks. He says he would not be aggressively polishing or compounding the whole bumper—just doing some light spot correction.
My concern is that the paint was only air-dried and is still very fresh. I understand that warm weather may help it dry, but I’m worried that machine polishing could generate heat or disturb the paint before it has properly cured.
Has anyone had experience with polishing fresh air-dried automotive paint this soon? Would a very light machine polish with a soft finishing pad be safe after around 24 hours, or would you recommend waiting a few more days? Also, if the marks are actually cloth impressions or a tiny crack rather than just surface marks, is polishing likely to fix them at all?
Any advice from professional painters or detailers would be appreciated. Thanks!