How to correctly look at the brake pad off powder

What is falling ash ?

When the vehicle is braking, the brake pad and the brake disc produce friction and fall out of the powder. Usually some owners see that the wheel hub is stained black by the powder falling out of the brake pad, it is thought that the brake pad has a serious powder phenomenon, which is everyone's understanding of the brake pad there is a misunderstanding.

Does the brake pad dust normally?

Now the European brake pads mostly use semi-metal or low metal material, which is characterized by good heat resistance, high absorption function rate per unit area, large thermal conductivity, can adapt to the car at high speed, high load running when the brake conditions, but there are relatively more shortcomings of ash fall. Japanese and South Korean car brake pads are more ceramic material, this material does not adsorb ash or dust after friction drifting. The disadvantage of this material is the high cost.

Just because the wheels look dusty doesn't mean the brake pads aren't good. Because all brake pads friction will drop ash, but because of the different wheel hub shape structure, how much ash is attached to the wheel hub. Brake pads containing metal components, brake friction produces static electricity, the friction dust material adsorbed on the hub to form black ash. Ceramic materials can also shed dust, but do not adhere to the wheel hub. After friction, they float into the air, so there is not much dust falling on the wheel hub

Whether the brake pads drop too much ash, it is just a surface phenomenon, don't worry too much. As long as it is found that the brake pads meet the replacement standard, the qualified brake pads can be replaced in time to ensure that the driving is worry-free.