Brake Dust
When braking force is applied, the act of abrasive friction between the brake pad and the rotor wears both the rotor and pad away. The "brake dust" that is seen deposited on wheels, calipers and other braking system components consists mostly of rotor material. Brake dust can damage the finish of most wheels if not washed off. Generally brake pad that aggressively abrades more rotor material away, such as metallic pads, will create more brake dust.
Read more about this topic: Disc Brake
Famous quotes containing the word dust:
“Piles of scrapbooks, the cuttings turned by time to the colour of the freckles on an old lady’s hand. Her hand. My hand, as it is now. When you touch the old newsprint, it turns into brown dust, like the dust of bones.”
—Angela Carter (1940–1992)
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