I painted my car 4 years ago.I used PPG Deltron for the base coat and DC1100 for the clear and DC 1260 for the hardener in the clear.I am going to touch up the car.I can't get the DC1100 clear anymore I think it was discontinued.What clear will I be able to use that won't react to the DC1100.I will be wet sanding the whole car and applying the clear to the full panels that I am touching up.Which means going over the old clear in some spots.When I painted the car I stripped it all the way down.

You should not have any problem putting any urethane clear over a cured paint job,unless it's an old Maaco job!!

I would talk to the guys at the paint supply shop. They will be able to set you up with the best PPG product to match the panels.

Sorry no old macco-bakko job here.Thanks for the input guys.