In the absence of professional instruments for testing, it is difficult for ordinary consumers to judge the quality of brake pad materials and processing methods with the naked eye. Fortunately, we can make a preliminary classification of the brake pads in front of us based on the following methods.
The first thing to pay attention to is the particle distribution on the friction surface of the brake pad. Generally speaking, the brightly colored parts are metal powder particles. If the particle diameter of the powder particles is smaller and the distribution is more uniform, this shows the degree of processing of the brake pad. Fine and good quality (probably produced using powder metallurgy).
In addition, the material of brake pads can be divided into full metal and semi-metal. Full-metal pads are more aggressive to the disc and require higher braking pressure. Using this type of pad is more laborious and the disc has a longer life. Low, the noise generated during braking is also relatively high. Since the principle of this kind of brake pad is the so-called "skin-biting disc", although it causes greater wear on the disc, the overall braking effect is good, which is its biggest advantage.
As for semi-metallic brake pads, they are made of metal powder, composite fibers, and frictional materials. Although the braking performance is not the best, it is wear-resistant and durable, has low noise, can also effectively reduce the amount of dust, and protects the disc. The disk is less aggressive. In addition, with the advancement of materials and processing technology, today's semi-metallic brake pads can also perform very excellent functions.
We can easily identify the properties of this brake pad from the metal distribution on the friction surface of the brake pad. To put it simply, when you see a variety of brake pads on the rack of a modification shop, the more golden glitter on the friction surface of the brake pad, the higher the metal content contained, otherwise, it is semi-metallic or composite. The material comes from the film. Although high metal content brake pads are an older design concept, they can produce good braking performance. The technology of semi-metallic brake pads is relatively new. Although it does not mean that the modified brake pads will perform better, it can at least be sure that they will not be too noisy after being installed, and dust can be moderately suppressed.
There is also knowledge on the back of the brake pads!
The colors of brake pads on the market are colorful and look dazzling. In fact, this is not necessarily a good thing. What you need to know is that the color of the brake pads is coated on the back and not the friction surface. Why bother making a fuss about the back? ? Beauty is one reason, and rust prevention is also a reason. So, why rust prevention? Because the material used will rust...if so, the back attachment piece of this type of brake pad is usually a lower-cost iron material. It is not bad to use iron materials, but users need to pay more attention to whether there are oxidation, rust and other problems after use.
