Posts Tagged: brake dust on wheels

What causes brake dust?

Brake dust is just residual friction material and rotor particles. All brakes create brake dust. A light dusting is normal. But excessive dust on your wheels is often the sign of serious brake issues. If you have excessive dust, get your brakes inspected. What’s in brake pad friction material? Depending on the type of friction material; non-asbestos organic (NAO), semi-metallic, or ceramic, brake pads contain a combination of these raw materials: zirconium silicate and aluminum oxide as abrasives friction particles derived from cashew shells steel wool wire copper (new EPA … Read More