Rust colored ring runs the inner circumference of brake rotor

[robwoodgto]

Hey Mike,

On my black 2014 Acura MDX brake rotors there is a rust colored ring running the inner circumference of the rotor. My Sienna has the same colored ring, and my Maxima has a thicker ring. Have you or anyone else reading this thread ever detailed that ring by either coating it with a high temp paint, or something else. While my MDX is neither a high end Porsche nor Ferarri with red brake calipers (which I happen to like by the way), I would like to know what others are doing about this issue if anything.

Thanks,
Ron

[fly07sti]

Pictures would definitely help.

[brettS4]

This might be helpful.

[Setec Astronomy]

This might be helpful.

See, I don't think he's talking about the rotor hat. There are some vehicles, for whatever reason, maybe it's just platform reuse, where the ground area of the rotor is a lot bigger than the swept area of the pad, and it leaves a rusty ring from the get-go.

[brettS4]

But wouldn't that be the same as painting the rotor hat and extending the paint slightly onto the disc? (Assuming I understand you correctly.)

[Setec Astronomy]

But wouldn't that be the same as painting the rotor hat and extending the paint slightly onto the disc? (Assuming I understand you correctly.)

Yes, I'm just saying that his rotor hat may not need to be painted because it may not be rusted (yet). But same thing.

[robwoodgto]

Thanks for the replies so far. I will snap a picture today after I get off of work and upload it. BTW, this portion of my rotor is closest to the hub and does not come in to contact with my pads.

Thanks,
Ron

[Shawnuff]

I know what your talking about. Clean the rust off with a wire brush and brake cleaner then a light sanding then mask out then paint. Use high heat paint a few coats would due then your good to go. Oh and couple coats of high heat clear as well.

[Don M]

I know what your talking about. Clean the rust off with a wire brush and brake cleaner then a light sanding then mask out then paint. Use high heat paint a few coats would due then your good to go. Oh and couple coats of high heat clear as well.

... AND don't go too thick with the paint and make SURE it's FULLY dry before reinstalling the rim to the rotor hat, or the paint will glue the two together.

Personally, I would paint the hat, let it dry, then brush some anti-seize compound on the back of the rim where it contacts the hat, to make sure they come apart easily the next time you need to dismount the rim from the car.

[Shawnuff]

... AND don't go too thick with the paint and make SURE it's FULLY dry before reinstalling the rim to the rotor hat, or the paint will glue the two together.

Personally, I would paint the hat, let it dry, then brush some anti-seize compound on the back of the rim where it contacts the hat, to make sure they come apart easily the next time you need to dismount the rim from the car.

Yea, what he said..