When you are done with your last coat of color wait 15 to 30 minutes for the color coat to dry. (wait 2 or 3 hours for the paint to fully dry and wet sand with 1000 grit if needed) Then start spraying the clear , waiting 5 to 10 minutes between coats , after you get 3 or 4 coats on , wait another 30 minutes then spray on a last "wet" coat , just a little thicker than the previous coats . Let dry a couple days before touching it . Then you can polish it and wax it .but how do you add the clear coat? does the paint need to be dry first.