What are the methods to repair deep scratches on white car paint?
4 Answers
Methods to repair deep scratches on white car paint: 1. Deep scratches without damaging the primer: Touch-up pens are used for small scratches. Choose the color carefully as some pens may still have a significant color difference from the paint. 2. Scratches that have damaged the primer: Black putty can be used for effective repair. Use sandpaper on the scratched area without enlarging the damage. It's important to clean the dirt thoroughly and apply the putty carefully to ensure it fully penetrates the surface. Daily car paint maintenance methods: 1. Rinse promptly after rain: Rainwater stains on the car body will gradually shrink, increasing the concentration of acidic substances in the rainwater. If not rinsed with clean water promptly, the paint will be damaged over time. 2. Wash the car when the engine is cool. Avoid washing under direct sunlight or high temperatures to prevent detergent from drying and leaving marks. Do not use highly alkaline detergents like laundry powder, soap, or dishwashing liquid, as they can strip the protective oils from the paint and accelerate aging.
When dealing with car issues, I found that there are quite a few methods to repair deep scratches on white car paint, depending on the depth of the scratch. If it's just a surface-level deep scratch that hasn't damaged the base coat, you can try using a touch-up pen or professional scratch repair agent to fill it in gradually. Remember to clean the car body first, lightly sand it smooth with fine sandpaper, then apply the paint. Once it's dry, polish it, and you can get it done for just a few dozen yuan. However, if the scratch is deep enough to expose the metal or plastic layer, DIY methods might not work, especially since white paint is prone to color mismatch. In such cases, you'll need to take it to a professional repair shop for a respray. They’ll first fill the crack with filler and then apply a full coat, with costs ranging from a few hundred to over a thousand yuan. I’ve seen many cars rust due to delayed repairs, so it’s best to address this early to prevent more serious damage. To prevent scratches, avoid parking near obstacles like tree branches or curbs, which often pose a risk of scratches.
I think this should be done step by step, especially since deep scratches on white car paint are particularly noticeable, so the repair needs to be practical. I've tried doing it myself—first, clean the scratched area with a cleaner to determine if it's truly deep: if it feels rough to the touch, it's a deep scratch. For a simple DIY fix, you can buy a spray paint kit from Taobao, along with matching sandpaper. Carefully sand the area and then spray paint to match the color. If that doesn't work, take it to an auto repair shop for a partial respray, but make sure the color is accurately matched—white paint comes in cool white and warm white shades, and a mismatch will look bad. The repair process is time-consuming; doing it yourself might take half a day, while a shop will be faster but more expensive. Additionally, improper handling of deep scratches can damage the original paint's protective layer, leading to rust or bubbling, which increases maintenance costs. So, I always recommend testing a small area first; if the results are good, proceed with a full repair to avoid waste. Using a soft cloth when washing your car can also help reduce the occurrence of scratches.
As a car enthusiast, deep scratches on a white car can be repaired either DIY or professionally, with significant cost implications. For minor deep scratches, buying repair wax or stickers to cover them up is cheap; if you really need to fix them, look up tutorials online to sand them down and spray paint, costing just a few dozen. However, if the scratch is deep enough to expose the primer or metal layer, the cost of spray painting and filling can rise to hundreds or even thousands, so it's better to find a reliable shop for peace of mind. Don't delay this issue—prolonged exposure of the metal can lead to rust and structural safety risks. Color matching is crucial, especially for white cars; cold-toned whites require the right paint to avoid noticeable color differences that can damage aesthetic value. I've seen a friend try to save money with a DIY job that went wrong, ending up spending more on rework. Overall, for cost-effectiveness, minor scratches can be fixed yourself, while deeper ones are better handled professionally for better value.
