Have you failed to wash your car?What is the identity of "black streaks" that bother car lovers (March 21, 2021) --Excite News

It becomes black when dirt on the body is mixed

I thought that it was cleaned and cleaned up, and the body drooping the body.It may also occur after the rain.In particular, the white body is noticeable, so I'm frustrated and want to do something.As you may know, the black streaks are a kind of water aka.There are cases where it spreads throughout the body, and cases where it drips and becomes a muscular shape.

Strictly speaking, the water used in rain or car washing is not black from the beginning.In the case of water supply, calcium is contained, so it can be white when it dries, but it is not black, and it is hard if it is.

Then, why dry it becomes a black streak because the dirt on the body is mixed.If you look closely at the source of the muscle, you can see that it is flowing through the gap, such as the edge of the window, the mall, and the door mirror mounting part.In other words, the dirt that has entered this gap flows out with the moisture, and the black traces remain.

On the other hand, it is the same as the whole thing that makes the whole darker, and the dirt attached to the painted surface melts due to rain and spread over the entire surface.This is why if you look closely, you may still be rounded to the traces of the rain.

In any case, this dirt includes not only garbage and dirt in the atmosphere, but also stubborn things such as exhaust gas, and if it is the base of the mall and door mirror, it also contains deteriorated rubber and resin components.。In other words, if you leave it dry, it will be stubborn and it will be difficult to drop it.If it's terrible, you'll have to use a cleaner with a water maka, so I want to try to drop it as much as possible.It is also a fundamental solution to keep coating in advance and avoid noticeable white body colors in the first place.

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