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Wanted to share since I haven't seen any threads discuss this.
I'm using Centric Slotted rotors and Carbotech XP20 front pads. After two track days, the wear on the rotors is really splotchy... which I don't like very much.
I *thought* most of the splotches around the area of the slots was pad transfer... but today when I looked more closely in the right lighting I noticed it was actually flaking and pitting of the outside layer of metal.
I asked CT about them, and here's what they said... which now makes more sense:
"Those rotors have one of those special coatings that is being used from time to time. I am referring to the contact surface of the rotor. Rotor manufacturers are applying different coatings to help longevity and thermal capacity. The problem with that is the coating only lasts so long and causes issues like you are seeing now. "
What do you think?
(from this album)
https://plus.google.com/photos/107801883777490196336/albums/6014838934916178561?authkey=CMPglenKgZGliAE
I'm using Centric Slotted rotors and Carbotech XP20 front pads. After two track days, the wear on the rotors is really splotchy... which I don't like very much.
I *thought* most of the splotches around the area of the slots was pad transfer... but today when I looked more closely in the right lighting I noticed it was actually flaking and pitting of the outside layer of metal.
I asked CT about them, and here's what they said... which now makes more sense:
"Those rotors have one of those special coatings that is being used from time to time. I am referring to the contact surface of the rotor. Rotor manufacturers are applying different coatings to help longevity and thermal capacity. The problem with that is the coating only lasts so long and causes issues like you are seeing now. "
What do you think?
(from this album)
https://plus.google.com/photos/107801883777490196336/albums/6014838934916178561?authkey=CMPglenKgZGliAE