Quick Overview Our coated rotors are coated on their entire surface with a proprietary full Grey Fusion 4. 0 coating. The rotors are put through 300 plus hours of salt spray testing Best-in-class performance Ultra-smooth braking Maximized friction life Raybestos Element3 Coated Rotors are developed from OE samples and made with G3000-qualified material, ing form, fit and function for dependable braking.