Well brake lining is considered to be the most essential part of the brake pad, it is the main raw material which is responsible to create friction and stop the car. Brake Lining are composed of a soft but tough heat resistance material with a high coefficient friction material, this brake lining is mounted with a solid backing of metal by using high temperature adhesives or rivets. This whole assembly is termed as brake pads or brake shoe, which are being offered by different brake pad suppliers. The standard coefficient for dynamic friction is usually 0.34 to 0.42. I know this is hard to conceptualize so this means that a force of 1000 pounds on a pad will give a brake force close to 400 pounds. Although the racing pads are high heat resistance and have a very high coefficient friction with in the ranges of 0.55 to 0.62.