Brake Pads on the market are mainly divided into three categories: ceramic, low-metallic, and semi-metallic.
The best material is ceramic, composed of copper, zinc, aluminum, and other soft metals, other metal components less than 3%, no steel fibers, no heavy metals, a density of 1.8-2.3g/cm³, imported resin, and mineral fibers can make the brake disc to keep neat, no noise, no rust, high brake comfort, and sensitive braking, good insulation performance, service life: 40,000 -50,000 km.
And low-metallic is also good, the steel fiber content of 5%-20%, density of 2.0-2.5g/cm³, high-quality mineral fiber can make the brake disc not easy to black, almost no noise, not easy to rust, high brake comfort, and sensitive braking, good insulation performance, service life: 30,000-40,000 km.
And last is semi-metallic material: The content of steel fiber and iron powder is more than 20%, (including copper fiber, golden dots can be seen on the surface), widely used in the aftermarket, service life: 30,000 km.