How to Repair Scratches with a Touch-Up Pen?

2 Answers
KadenDella
07/24/25 2:59pm
Method for repairing car scratches with a touch-up pen: 1. First, use 1000-grit sandpaper to completely remove rust, dirt, and grease from the paint surface. Use very fine wet sandpaper dipped in water to gently sand away rust spots, ensuring thorough cleaning to prevent rust from spreading; 2. Fill the scratch with putty in multiple layers; 3. Use masking film to cover other areas to avoid overspray; 4. Open the touch-up pen, shake it well, and connect it to the spray can; 5. After securing the touch-up pen, begin spraying the first layer; 6. After ten minutes, spray the second layer; 7. Wait another ten minutes for the previous layer to dry, then apply the third layer; 8. Once the repair is complete, if the temperature is below 20°C, you can use a hairdryer to speed up the drying time between each layer.
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VanBrandon
08/11/25 8:39am
I remember last time there was a small scratch on the car door, and I fixed it with a touch-up pen. The whole process needs to be done step by step: First, thoroughly clean the scratched area with water and a soft cloth to ensure there's no dust or stains; if there's grease, add a bit of neutral detergent to scrub. Second, if the scratch is a bit deep, use ultra-fine sandpaper (like 2000 grit) to lightly sand it smooth, remembering not to press too hard to avoid damaging the primer. Third, shake the touch-up pen well, drop a bit on an old cardboard to test the color match—this step is super important, don't skip it! Only apply it after confirming the color matches, just a thin layer is enough, don't pile it too thick or it will bubble. Fourth, wait 15 minutes for it to dry before applying the second layer; if the color difference is significant, apply one more layer. Finally, use a polishing compound to gently buff the surface smooth. The whole process requires patience and attention to detail, but the result is almost invisible and saves money, making it perfect for minor daily scratches.
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