The unsightly brake dust that we all see on automotive wheels is caused by abrasion of the cast iron brake rotor by the pad and secondly fibers from the semi metallic elements of the brake pad. The remainder of the dust residue is carbon content within the brake pad. 99% of automotive brake pads made these days are made as a semi metallic, meaning a bundle of steel fibers compressed and fused together with other additives. The steel fiber content can be up to 30% of the pad and this abrasive material is what scratches your brake rotor and causes the dust.
Non metallic pads such as those made with Twaron or kevlar fiber are only available as an upgrade in the aftermarket. Very few manufacturers opt to use these more expensive materials simply for build cost purposes. These pads are known an organics and often outperform and outlast their semi metallic counterparts as well as reducing rotor abrasion and dust caused in the braking action.
EBC brakes is a world leader in clean running organic pad technology for cars and light trucks with its radical new Redstuff premium sport brake pads or the popular Greenstuff 7000 series pads for trucks and SUV and more details on the full range can be found below.