Open-wheel designs on modern vehicles leave brake parts, particularly rotors, more exposed to the elements. If a rotor is uncoated, corrosion and rust begin to form immediately. Raybestos Element3 Coated Rotors use a propriety finishing technology to coat each rotor's entire surface, including the cooling vanes. The full Grey Fusion 4.0™ coating helps resist corrosion and significantly delays rust-induced performance issues.The Raybestos coated rotor is ideal for drivers in rust-prone areas, including:The rust belt, where aggressive snow and ice melt chemicals accelerate the corrosion of rotors and coastal regions with salt in the air and high humidity