How Long Does Nail Polish Touch-Up Last?
2 Answers
Nail polish touch-up can last two to three days. Polishing for small areas: If the degree and area of the car's scratches are relatively small and the primer is not exposed, you can directly apply wax and polish to treat it. Using a touch-up pen for touch-up: If the degree and area of the car's scratches are small but the primer is exposed, you can use a professional touch-up pen for touch-up. Applying putty and repainting: If the degree of the car's scratches is moderate but the area is relatively large, you can sand down the scratched area with sandpaper, then apply putty and repaint. Performing sheet metal repair: If the degree of the car's scratches is severe and the area is large, you need to go to a repair shop or 4S store and ask professionals to perform sheet metal repair.
Let me chat with you all about how long car touch-up paint lasts—it really depends. From what I usually handle, if you just dab a small scratch with a regular touch-up pen without proper surface cleaning, exposure to wind, sun, and car washes will cause it to fade or peel within three to four months at most. But if you opt for factory-matched paint, apply primer after sanding, coat it evenly, and seal it with wax, it can last one to two years or even longer. Location is key: high-friction areas like the hood or door edges wear out faster, while less-contacted spots like the rear bumper hold up better. Environmental factors matter too: harsh sunlight speeds up fading, while a shaded garage extends longevity. I’ve seen plenty of cars where neglected small scratches led to rust—a hard lesson—so don’t cut corners. For daily drivers, expect one to two years on average.
