How to Repair a Scratch Line on a Car?

[MacEleanor]

The following are the repair methods for a scratch line on a car: 1. Hairline scratches: Can be easily removed with wax containing fine-cut abrasives. 2. Minor scratches: Use fine or medium-cut abrasive wax for repair. 3. Moderate scratches: Take the car to a 4S shop for repainting or use a touch-up pen with the same color code. 4. Deep scratches: Go to a 4S shop for rust-proof primer treatment and surface paint repair. Additional Information: The following are the criteria for judging scratches: 1. Hairline scratches: Even dust and sand in the air during high-speed driving can cause fine hairline scratches on the car's paint surface. However, these are usually not noticeable to the touch. 2. Minor scratches: Leave a visible mark on the car's paint, but upon close inspection, the scratch is very shallow, with only a slight indentation. In reality, this only damages the transparent layer of the paint surface.

[DiAlice]

Last time my car door got a shallow scratch, I tried a DIY method. First, I cleaned the scratched area with soapy water to ensure it was clean and dry. Then, I applied a bit of regular toothpaste or professional car scratch paste, gently rubbing in circular motions with a soft cloth or sponge for a few minutes, making sure to apply even pressure without being too harsh. After wiping off the residue, I polished the surface, and the shallow scratch was basically invisible. For deep scratches, you need to be more careful—if the scratch reaches the primer, it's best not to mess with it and instead seek a professional shop to sand it down and repaint it to match the original color, avoiding corrosion and color mismatch. When parking, choose open spots to avoid scrapes, and apply protective wax after washing the car as a preventive measure—it’s simple and can save you some money. But always assess the depth of the scratch first and don’t force a fix.

[LaElena]

I always pay attention to car maintenance. For that scratch, first check its depth: shallow ones can be effectively treated with scratch repair wax—clean the surface, apply the wax, and gently polish it. If it's deep and exposes the metal layer, you need to get it painted immediately to prevent rainwater from seeping in and causing rust or corrosion on the body. I recommend going to a reliable repair shop where they'll use professional equipment to sand and repaint, ensuring color consistency and safety. I've done minor touch-ups myself, but only for surface flaws—deep scratches are better left to professionals. Usually, I park away from tight spaces and regularly wash and wax the car to protect the paint and extend its lifespan.

[Enid]

When encountering scratches, I often try economical methods like using toothpaste or scratch removers for light polishing. The steps involve cleaning, drying, and gently rubbing the shallow scratches. For deep scratches, don't push your luck—take it to a shop for professional repainting to avoid damaging the car and increasing costs. Professional repairs can range from tens to hundreds of yuan. Combining this with regular maintenance like waxing for prevention is a better way to save money.