With the right products and tools, it's easy to fix car paint scratches and chips, even if you don't have the experience. Depending on the depth of the scratches, you will use different repair techniques. There are 4 layers that a scratch can pass through: clear coat, basecoat, primer, and metal.
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To see how deep the stroke is, run it with your nail at a 90 degree angle. You will feel whether the scratches have damaged the metal. Before starting the repair, make sure the area is free of dirt, grease, and wax. Wash your car with warm water and detergent. When the repair area is clean, dry it completely.
Small scratches on the car
Car scratches that slightly damage the transparent coating can be removed very easily. Some good quality scrubs and polishers should do this. As a final step, apply wax to protect the color.
Medium scratches for cars
Medium scratches on a car are scratches that have penetrated the paint layer but have not affected the primer. To repair these types of scratches, sand the damaged area with fine sandpaper. You can sand wet or dry.
Deep scratches on the car
Repairing deep scratches on your car takes a few more steps. First, check for rust. If so, use sandpaper with the bottom grid to smooth it out. I usually use 180 grit sandpaper, then apply several coats of gray primer.
After the primer dries, spread it with 600 grit sandpaper. Another step is the same as correcting the medium scratches above. You should also wait 30 days before applying the wax.