Ceramic is one of the most common brake pad materials. Ceramic is typically used for street use on less demanding applications like daily drivers and light-duty trucks. One reason for ceramic’s popularity is its quiet braking. Brake pads do make sound, but they generate a frequency that’s higher than the human hearing range
Ceramic also generates less dust, keeping your wheels clean and shiny, and it slows the onset of wear for both your pads and rotors.
Semi-Metallic brake pads contain anywhere from 30 to 65 percent metal (bits of steel wool or wire, copper, iron powder) mixed with synthetic fillers and bonded with friction modifiers.
Brake pads are also available in organic and low-metallic formulas. Low-metallic brake pads feature between 10 and 30 percent copper or steel to provide extra friction and heat transfer without wearing on rotors as hard as semi-metallic pads. Due to their metal content, low-metallic pads will be slightly noisier and generate more dust than ceramic or organic pads.
Organic brake pads are made from natural fibers like glass, carbon, rubber, or Kevlar and are held together with high-temp resins and filler materials. They’re quieter than metallic formulas and softer on your rotors, and they work well when cold so they’re a great choice for daily drivers. Organic pads don’t bite as hard when they get hot, so they’re not ideal for racing.