How to Repair Scratches Caused by Keys on a Car?

2 Answers
NadiaLynn
07/29/25 8:37pm
If the car paint is slightly scratched and the damaged area is on the surface layer of the topcoat, it can be repaired by waxing. Below are specific methods for handling scratches: 1. Light scratches can be resolved using coarse wax rubbing or polishing. For deeper scratches that haven't exposed the primer, fine sandpaper can be used for grinding followed by polishing. If the scratch is very deep and the primer is exposed, it's best to perform a local paint repair to restore as much as possible. For small and shallow scratches, a touch-up paint pen can be used for DIY repair. Alternatively, car stickers can be used to directly cover the scratches. If applied well, the stickers can also bring a unique aesthetic effect to the car. Of course, professional repair at an auto beauty shop is also an option. 2. If the car paint is slightly scratched and the damaged area is on the surface layer of the topcoat, waxing can be used for repair. For larger areas of scratches, a touch-up paint pen can be employed. For severe scratches, a visit to an auto beauty shop for paint repair is necessary.
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JohnDella
08/14/25 5:46pm
When encountering a car scratched by a key, I would recommend the following professional handling process. First, assess the scratch depth: gently run your finger over it—if your nail doesn't catch, it's only a surface scratch; if it does, the metal is damaged. For shallow scratches, you can use car polish or toothpaste as a temporary fix, but this isn't a long-term solution. It's best to purchase specialized rubbing compound and apply it several times. Deep scratches require thorough repair—clean the area, sand it smooth, apply primer to prevent rust, spray with matching color paint, and finally polish to a smooth finish. I recommend using reputable brand tools, such as the 3M scratch repair kit, and avoid direct sunlight during DIY repairs to prevent paint cracking. Neglecting timely treatment may lead to rainwater seepage and rust, resulting in higher costs later. Parking in secure locations can help prevent such issues.
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