What is the method for touch-up painting?
2 Answers
Touch-up painting can be done using a touch-up pen or toothpaste. Here is a detailed introduction to the touch-up painting methods: 1. If the paint surface is not damaged: Use toothpaste and a cloth to wipe the area. If the mark can be wiped off, that's sufficient; if not, you can visit a repair shop to have it polished using a polishing machine with polishing wax. 2. For shallow scratches: Use a touch-up pen for touch-up painting. This method is highly practical. 3. If the primer is exposed: Visit a repair shop for repair and repainting. This will make the car's exterior look neater. Moreover, with current techniques, the color difference after repainting is usually minimal.
As a seasoned DIY car enthusiast, I frequently handle touch-up painting myself, and the key lies in following the steps meticulously. First, clean the car surface with soapy water to remove dirt and grease, then let it dry before sanding down scratches or rust spots with 240-grit sandpaper until the surface is smooth and even. If there are deep dents, apply a thin layer of body filler to level them out, let it dry, and lightly sand again. Next, apply primer—mask off surrounding areas with newspaper and tape to avoid overspray. After the primer dries for about half an hour, proceed with the color coat using a matching spray can, applying multiple thin layers with 15-minute intervals to prevent drips. Once the color coat has cured slightly, add a clear coat for protection, then polish with fine sandpaper or polishing compound for a glossy finish. Always work in a well-ventilated area; sunlight in summer speeds up drying. The tools are affordable—spray cans and sandpaper cost just a few dozen bucks at auto parts stores. DIY saves the hassle of visiting a repair shop and hones your skills. But remember, for extensive damage or hard-to-match colors, it’s better to seek professional help to avoid costly mistakes.
