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      04-05-2020, 04:31 PM   #1
straightdraw84
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Anyone use black rotors?

Like these:

https://www.amazon.com/Front-Black-D...xpY2s9dHJ1ZQ==

My concern is that even with the zinc coating, the pads will eventually get rusted and I don't see the rotors really staying black where the pads meet...
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      04-05-2020, 04:50 PM   #2
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The rotors won't stay black where the pads meet. It says so right on the page. My guess is that they're electroplated with the black zinc, which results in the entire rotor getting coated, rather than just the area that's not swept by the pads. They'll stay rust free a lot longer than plain rotors, but not indefinitely. They won't brake better than plain rotors. They'll shed heat better under extreme conditions, so it's worthwhile for the track, but for a daily driver plain gives better initial bite.
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      04-05-2020, 05:37 PM   #3
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Quote:
Originally Posted by Billfitz View Post
The rotors won't stay black where the pads meet. It says so right on the page. My guess is that they're electroplated with the black zinc, which results in the entire rotor getting coated, rather than just the area that's not swept by the pads. They'll stay rust free a lot longer than plain rotors, but not indefinitely. They won't brake better than plain rotors. They'll shed heat better under extreme conditions, so it's worthwhile for the track, but for a daily driver plain gives better initial bite.
Yeah probably sticking to the plain ones might be better
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      04-05-2020, 07:14 PM   #4
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Depends on the type of coating if it will come off. Some premium brands have an e-coating that seems to hold up well to the rust. The OEM BMW front rotor uses an aluminum cap, this prevent the rust from the rotor inner hub to be seen (I do not know if this is the reason for the cover). I have found that the G2 Ceramic coating seems to hold up reasonably well the the heat if you put it on (at least on the rear hub).
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      04-05-2020, 07:21 PM   #5
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I like shiny brakes rotors... that don't rust....just me
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      04-05-2020, 07:55 PM   #6
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just buy regular ones and paint the black on the parts that don't touch the pad.
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      04-05-2020, 08:54 PM   #7
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Quote:
Originally Posted by straightdraw84 View Post
Like these:

https://www.amazon.com/Front-Black-D...xpY2s9dHJ1ZQ==

My concern is that even with the zinc coating, the pads will eventually get rusted and I don't see the rotors really staying black where the pads meet...
I have had black drilled rotors for about a year now and the coating has not worn off if that is your concern. You can only see the black at the center area of the rim.
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      04-05-2020, 09:09 PM   #8
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Quote:
Originally Posted by kpgray View Post
Depends on the type of coating if it will come off. Some premium brands have an e-coating that seems to hold up well to the rust.
I have E coated front rotors, the coating wears off where the pads contact them. They look good after 18 months.
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just buy regular ones and paint the black on the parts that don't touch the pad.
That works too, I painted my rear rotors. No need to mask them when you paint, just as with coated rotors the paint will wear off where the pads make contact.
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      04-06-2020, 09:27 AM   #9
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Quote:
Originally Posted by straightdraw84 View Post
Like these:

https://www.amazon.com/Front-Black-D...xpY2s9dHJ1ZQ==

My concern is that even with the zinc coating, the pads will eventually get rusted and I don't see the rotors really staying black where the pads meet...
Where are these rotors made?
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