Brake Dust

Some pad types produce more dust than others. It can etch wheel finish if left too long. Electric cars produce less because they use regenerative braking. Ceramic pads usually produce lighter-coloured, less visible dust than semi-metallic pads. Fine brake particles are also a source of air pollution, and future regulations in the EU address brake emissions.

Friction wears away tiny particles of pad and disc.

Clean wheels regularly with a suitable cleaner. Sudden heavy dust can point to a dragging brake.