Centric GCX Elemental Protection brake rotors are engineered to restore OE performance and provide superior protection from rust and corrosion. Centric rotors eliminate pad fouling and corrosion rings. Centric's specialized RS200 coating is applied to non-friction mating surfaces on the brake rotor and friction surfaces are kept clean which helps in reducing the pad bed-in time. All non-mating surfaces are fully coated to avoid rust formation and provides long-lasting corrosion resistance.