Likewise, how do you paint a truck bumper? Then take a paper towel folded into quarters and wipe until it is dried off. If Your Car Happens To End Up Getting A Paint Transfer By Accident Worry Not As You Can Remove It Safely And Quickly And This A Paint Remover Car Painting Car Depending on the damaged bumper or panel; How long does it take to paint a car bumper . Depending on how large the car is, the whole sealing and painting process can average around 2 to 3 hours. My paint buddy does them, but his price starts at about $4000 and usually is around $6000. Painting a bumper correctly requires that you remove the bumper from the vehicle. Pick the car up in the morning. The process will certain take one day, as some paints require 24 hours to dry. Usually this is one medium wet coat, with a 15 minute flash time. With the wax and grease remover, mist about a third of the bumper cover. This can take anywhere from 15 minutes to 2 hours depending on your automotive ex...