Rusty Rotors
#1
Burning Brakes
Thread Starter
Rusty Rotors
The Grand Sport I bought had rust around the inside inner portion of the contact area on the rotor and a bit around the section where the wheels mount. I sanded them clean, but of course they are rusted again already.
I am planning on painting the calipers, so probably a good time to paint or seal the rotors in that area. Anyone have any recommendations?
I am planning on painting the calipers, so probably a good time to paint or seal the rotors in that area. Anyone have any recommendations?
#2
Le Mans Master
I used black caliper paint on my rotor hats and perimeter and it has held up well for five years now.
#3
Burning Brakes
Thread Starter
Like to find some decent pics with the rotors painted. Have any pics of yours?
#5
Burning Brakes
Thread Starter
Was looking at my buddies base 2008 and his rotors being different don't seem to have the same rusting issue. Is this something specific to the GrandSport/Z06 brakes? Unless the previous owner sanded that area before, not sure why it would be rusting there. I sanded it off, but it cam back very quickly. Maybe can just sand it again and put a sealant on it. Guess black would look good though, especially if I do the calipers black, though really like to get the calipers to match the car, but think doing the same on the rotors would be too "blingy"
#6
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#7
Melting Slicks
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Was looking at my buddies base 2008 and his rotors being different don't seem to have the same rusting issue. Is this something specific to the GrandSport/Z06 brakes? Unless the previous owner sanded that area before, not sure why it would be rusting there. I sanded it off, but it cam back very quickly. Maybe can just sand it again and put a sealant on it. Guess black would look good though, especially if I do the calipers black, though really like to get the calipers to match the car, but think doing the same on the rotors would be too "blingy"
DBA rotors come pre-painted too. I like them for track use, but then I'm not running a BBK (yet).
#8
Le Mans Master
"...rust around the inside inner portion of the contact area..." Do you mean there is rust on some of the area contacted by the pads? If so, do not put any coating over that area, as it will transfer into the pads, and affect braking, as well as decrease pad/rotor life. Some rotors have factory coatings on them, but you cannot effectively duplicate that at home.
If I misread it, I apologize.
If I misread it, I apologize.
#9
I think that he is talking about the rotor hat and a small section of the rotor which is not in the pad sweep area. I have the j55 brakes on my base car with aftermarket rotors and I have a ring about a half inch or so wide where the pad does not come in contact with the rotor. In my case, the aftermarket rotors cause this problem because the stock j55 rotors have a modified hat which doesn’t leave the excess rotor area. I am not sure about the GS brakes. I have attached a photo of mine which were just cleaned at the time, but you can see where the inside ring is that instantly rusts when it gets wet. I have been thinking about painting or sealing this area myself.
Last edited by RickC6; 02-14-2019 at 01:09 PM.
#11
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I had the rotors Zinc Plated on my 06 Vert. Never had a rust issue.
#12
Burning Brakes
Thread Starter
"...rust around the inside inner portion of the contact area..." Do you mean there is rust on some of the area contacted by the pads? If so, do not put any coating over that area, as it will transfer into the pads, and affect braking, as well as decrease pad/rotor life. Some rotors have factory coatings on them, but you cannot effectively duplicate that at home.
If I misread it, I apologize.
If I misread it, I apologize.
It is the area on Jughead's pictures (as well as RickC's) that is grayish/greenish as well as the "black" ring that is just inside of the contact area on the rotors.
#13
Safety Car
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I painted the area you are describing using flat black BBQ paint. Tremclad / Rustoleum makes it. I bought a small can, and used a 1/2" brush. I did this at the time I removed the wheels to clean the barrels, but there was no need to remove the calipers and rotors. I was just careful with the brush, and maybe overlapped into the sweep area by 1/8" deliberately to get a clean edge later. I had to do this in two stages: first, paint what you can, because the area close to the bottom of the calipers can't be done on the rear wheels without rotating the rotors a bit. You can rotate the fronts easily and paint everything.. You can paint the hat as well just don't get any paint on the lug nut studs, or you will end up over tightening the lug nuts. After the wheels are put back on, you can move the car a bit to expose the small area that you couldn't paint on the rear wheels, and then reach through the spokes with the small brush, and finish the job. This is what the end result looked like, and pretty much looks the same after 12,000 miles. I can always touch it up again when I clean the barrels, or just reach through the spokes again with the brush. BTW, because the paint has no luster, you will not see any brush marks.
Last edited by FatsWaller; 02-15-2019 at 05:16 PM. Reason: Corrected for rear wheels.
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#14
Drifting
#15
Le Mans Master
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Me too, all four hats and the ring on the rears. Still looks good two years later. I tried taking a pic but my garage is too dark to show any detail. I wouldn't paint them red or any other color, you want to bring the eyes to the wheels and calipers, not the ugly hub area.
#17
Burning Brakes
Thread Starter
I painted the area you are describing using flat black BBQ paint. Tremclad / Rustoleum makes it. I bought a small can, and used a 1/2" brush. I did this at the time I removed the wheels to clean the barrels, but there was no need to remove the calipers and rotors. I was just careful with the brush, and maybe overlapped into the sweep area by 1/8" deliberately to get a clean edge later. I had to do this in two stages: first, paint what you can, because the area close to the bottom of the calipers can't be done yet. You can paint the hat as well just don't get any paint on the lug nut studs, or you will end up over tightening the lug nuts. After the wheels are put back on, you can move the car a bit to expose the small area that you couldn't paint, and then reach through the spokes with the small brush, and finish the job. This is what the end result looked like, and pretty much looks the same after 12,000 miles. I can always touch it up again when I clean the barrels, or just reach through the spokes again with the brush. BTW, because the paint has no luster, you will not see any brush marks.
Me too, all four hats and the ring on the rears. Still looks good two years later. I tried taking a pic but my garage is too dark to show any detail. I wouldn't paint them red or any other color, you want to bring the eyes to the wheels and calipers, not the ugly hub area.
Yeah I was reading up on that as well. Think I will go the black paint route, but may change my mind. Would that last longer, or just give it a different look than a gray or a black paint?
Thanks for the feedback guys.
Last edited by SPSandman; 02-15-2019 at 09:34 AM.
#18
Race Director
#20
Melting Slicks
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2023 C6 of the Year Finalist - Modified
2022 C6 of the Year Finalist - Modified
Bought NEW ...ZINC PLATED ROTORS ...on EBAY for $194 Free Shipping
Heck with painting
Hope these look STUNNING with my Inferno Orange POWDER COATED Calipers
Heck with painting
Hope these look STUNNING with my Inferno Orange POWDER COATED Calipers