How long does it take for a 4S shop to perform touch-up painting?
2 Answers
For minor touch-up painting at a 4S shop, it takes 3-4 hours; for severe cases, it takes 5-6 hours. Below are solutions to common touch-up painting issues: 1. Loss of gloss: Use a high-speed polishing machine with a specialized polishing compound to restore the finish, and the gloss loss will not recur. 2. Reaction (paint lifting): Chemical reactions during painting can occur due to wet spraying on an undercoat that is not dry, previous use of spray paint, or application of low-quality paint, leading to paint lifting. If paint lifting occurs, first dry the affected area with an iodine tungsten lamp, then smooth the lifted area with P1500-P2000 wet sandpaper. After drying, proceed with applying the color paint. If the reaction persists, completely remove the original paint, redo the undercoat, and then proceed with painting.
Last time my car got a touch-up paint job at the 4S dealership, they made me wait two full days to finish. Actually, the duration depends entirely on the damage extent—minor scratches might be done in half a day (drop off in the morning, drive back by afternoon). But for larger areas, like a door panel scraped into a "big painted face," it could take two days. They need to sand the surface clean, apply primer, spray the topcoat, then bake it in the drying booth, plus wait for thorough curing to prevent bubbling. Humid weather or shop queues can further delay things. Calling ahead to confirm timelines is crucial—saves wasted trips, time, and fuel costs. Pro tip: Always inspect the paint smoothness post-repair; otherwise, you might end up needing a redo shortly after driving away.
