I'm pretty sure that the black coating is intended to come off as soon as you start using your brakes. It remains where the pads don't make contact to protect the metal, but the pads keep the rotors clean over time. Just like on any vehicle, the rotors will develop surface rust quickly (like washing your car and not moving it for a while), but just a touch of the brakes cleans them up. I'd be curious to see what the paint has done to your pads.
(i painted mine black with brake caliper paint after coating started fading and little rust develop)
C-mon Doozi, give me a break, would you? I was talking about hub area of the rotor not contact surface. But even if you got paint on contact surface it'll burn off at when brakes applied. And yes I know all about Fe2-O3nH2O on Iron Rotor surface that makes contact with pad when H2O, O2 and Fe interact after wash.
C-mon Doozi, give me a break, would you? I was talking about hub area of the rotor not contact surface. But even if you got paint on contact surface it'll burn off at when brakes applied. And yes I know all about Fe2-O3nH2O on Iron Rotor surface that makes contact with pad when H2O, O2 and Fe interact after wash.
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EBC yellows!