When it comes to high performance and racing, the commo […]
When it comes to high performance and racing, the common feeling of the brakes is not only wrong, but it can be completely dangerous. You can not throw a typical auto parts storage pad on your high-power street machine and expect them to last any time. On a round track or road racing car, these mats can fail without warning, making you a game of your car or worse.
The performance of the brake pad of the world is filled with confusing different materials, wear levels, friction values and temperature range of compound arrays.
Disc brakes are a simple thing. It consists of a formed friction material pad mounted on a steel backplate. The composition of the friction material is part of the science, part of the black art - some pad manufacturers have more than 50 different compounds available!
In the past good days, manufacturers use asbestos to bind the friction composites together. When asbestos was phased out in the early 1990s, manufacturers were looking for new materials. The industry settled in three types - non-asbestos organic, semi-metallic and ceramic.
The organic mat has a non-asbestos organic friction / binder material; the pad must have a metal content of less than 20% to be labeled as organic. The main advantage of organic mats is quiet operation and longer rotor life. However, organic mats usually do not last for a long time, or in high temperature applications such as towing or racing.
The semi-metal pad is made of a hard resin matrix, added to the steel fiber to increase the hardness and extend the service life of the pad. This may be the most common pad available - most cars and light trucks use semi-metallic mats on the road. This makes semi-metallic materials ideal for heavy-duty applications such as high-performance streets, traction, round tracks or road racing.