Are All Scratches on Black Cars White Marks?
2 Answers
Generally, yes. In such cases, professional paint repair is required. The white marks are actually the primer. Below is an introduction to car body paint: 1. Introduction One: The car body paint consists of four layers, from the inside to the outside: the electrocoat layer, the primer layer, the basecoat layer, and the clearcoat layer. The electrocoat layer is mainly used for rust prevention. 2. Introduction Two: Above the electrocoat layer is the primer layer, which primarily serves to prevent rust and also enhances adhesion to the next layer of body paint. 3. Introduction Three: Above the primer layer is the basecoat layer, which mainly serves an aesthetic purpose. The various car colors we usually see are presented by the basecoat layer. 4. Introduction Four: The outermost layer of paint is the clearcoat layer, which is actually a transparent paint. 5. Introduction Five: The basecoat layer can enhance the glossiness of the car body paint and protect the basecoat layer.
Last time I was driving my black sedan, it got scraped by another car next to me, and sure enough, it left a big white mark. I was startled at first, thinking a chunk of paint had been scraped off! Upon closer inspection, the white mark was actually caused by the black paint being scratched away, revealing the primer or metal underneath, which is usually white or light gray. A friend told me that almost all black cars show this effect when scraped because the underlying material of the car body is this color. But there are exceptions—for example, if the car has been repainted, the underlying layer might be a different color. I immediately drove to a repair shop, where the mechanic fixed most of it with polishing and waxing, costing me just a small amount. Honestly, you really need to be careful when driving daily—park farther away from others to avoid blind spots where cars might hit you. If the white mark is deep, you’ll need a touch-up to prevent rust. Looking back, I learned my lesson: regularly check your car’s paint condition and don’t wait until it’s serious to address it.
