When it comes to brake pad ash, people first sort out a definition for everyone, what is ash falling: ash falling is just the debris that forms friction between the brake pad and the brake disc when the car needs to brake (people call it "ash falling").

Everyday people see the powder that falls off the brake pads and blackens the wheels, and they feel that the brake pads frequently lose powder. This is due to a misconception about the material of the brake pads, which leads people to point out that the blackening of the wheels is due to severe powder loss. Everyone should have touched on high-end cars such as BMW, Volvo, and Touareg in their daily lives. Why do they care about the wheels of these high-end cars in their daily lives? I believe those of you who have studied will find that their wheels are very black. Careful people generally notice that many globally renowned brands' brake pads have a common characteristic, which is also black powder.

Why are the original brake pads of high-end cars so black in powder, while the original brake pads of compact cars are not so black in powder? Why do many top tier brands' brake pads fall so black in powder, while the powder on brake pads priced over ten yuan in the world is not getting darker? Which brake pad brands are good now?

When driving a high-end car, besides experiencing the comfort inside the car, the key is to feel the super pleasure generated by the traction characteristics of the high-end car. Furthermore, there are the braking characteristics of high-end cars, which are indeed self-evident, such as slightly shorter braking intervals, comfortable braking effects (the nodding effect during sudden braking is not significant), and so on. This is all an advantage that comes with high-end car bodies. If you drive your car for a distance, you will find black powder on the wheel hub.

In theory, high-end car manufacturers should pay great attention to the appearance of the car body, so why do they still use brake pads that have lost black powder? This means that the Factor of safety of driving and the comfort of braking are involved. Due to the need for brake pad manufacturers to ensure the coordination, durability, and comfort of vehicle braking, a lot of carbon fibers have been added to the friction material of the brake pads. (Due to the lightweight nature of carbon fibers, which account for a lighter proportion than aluminum, the strength of the 1/4 ratio of non steel is 22 times that of iron, with good corrosion resistance, heat resistance, and durability.).

The brake pad characteristics of high-end cars are so good, but the friction material always contains carbon fiber. The downside is that the carbon powder that falls out during braking is too black, which is a concern for buyers of high-end cars. However, compared with the Factor of safety, reliability and comfort of the car when braking, it seems that the black and gray debris is no longer the key. If a large amount of money is spent on exploring the defects of black and gray particles that fall out after friction with a certain material instead of carbon fibers, it is unlikely. The reason is simple, and the cost of scientific research has already greatly exceeded the added value of product defects.