Your car’s brakes convert the vehicle’s kinetic energy to thermal energy with the help of friction, and the amount of friction generated by squeezing a brake disc to slow down an entire vehicle produces a lot of heat. This is where the brake pads come in. Each brake caliper contains two brake pads mounted with their friction-side material embracing the rotor. Thefriction material in these brake pads is specially engineered to live in that heat-soaked environment stop after stop. With time, they undergo the unavoidable wear and tear.