Notices
C6 Corvette General Discussion General C6 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Rusty Rotors

 
Old 02-14-2019, 01:56 AM
  #1  
SPSandman
CF Senior Member
Thread Starter
 
Member Since: Aug 2018
Location: Fredericksburg VA
Posts: 126
Thanked 15 Times in 12 Posts
Default 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?
SPSandman is offline  
Old 02-14-2019, 02:01 AM
  #2  
HBsurfer
CF Senior Member
 
HBsurfer's Avatar
 
Member Since: Feb 2014
Location: Chino CA
Posts: 3,189
Thanked 430 Times in 335 Posts
Default

I used black caliper paint on my rotor hats and perimeter and it has held up well for five years now.
HBsurfer is offline  
Old 02-14-2019, 02:04 AM
  #3  
SPSandman
CF Senior Member
Thread Starter
 
Member Since: Aug 2018
Location: Fredericksburg VA
Posts: 126
Thanked 15 Times in 12 Posts
Default

Originally Posted by HBsurfer View Post
I used black caliper paint on my rotor hats and perimeter and it has held up well for five years now.
Thanks, yeah was thinking about doing them black. I want to do the calipers red to match the car. Thought about doing the rotor areas in the same color, but not sure how that would look. Maybe do the Calipers black as well, definitely need something other than the stock gray or silver or whatever that stock color is.

Like to find some decent pics with the rotors painted. Have any pics of yours?
SPSandman is offline  
Old 02-14-2019, 05:14 AM
  #4  
enventr
CF Senior Member
 
enventr's Avatar
 
Member Since: Aug 2006
Location: Port St. Lucie West Florida
Posts: 3,509
Thanked 248 Times in 234 Posts
Default

Used black caliper paint as well almost 3 years ago and it’s still good.
enventr is online now  
Old 02-14-2019, 11:02 AM
  #5  
SPSandman
CF Senior Member
Thread Starter
 
Member Since: Aug 2018
Location: Fredericksburg VA
Posts: 126
Thanked 15 Times in 12 Posts
Default

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"
SPSandman is offline  
Old 02-14-2019, 12:13 PM
  #6  
jrose7004
CF Senior Member
 
jrose7004's Avatar
 
Member Since: Mar 2004
Location: Oklahoma City OK
Posts: 56,067
Thanked 767 Times in 682 Posts
Default

Originally Posted by enventr View Post
Used black caliper paint as well almost 3 years ago and itís still good.
I did that as well and no more problem.
jrose7004 is offline  
Old 02-14-2019, 12:18 PM
  #7  
mikeCsix
CF Senior Member
Support Corvetteforum!
 
mikeCsix's Avatar
 
Member Since: Jul 2010
Location: Bellevue, Wa/Surprise, Az
Posts: 2,421
Thanked 117 Times in 104 Posts
Default

Originally Posted by SPSandman View Post
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"
Nope, I think all OEM rotors come with primer gray or cold galvanizing to help keep them from rusting. Wait until you wash the car, you can see the contact area oxidize in realtime.

DBA rotors come pre-painted too. I like them for track use, but then I'm not running a BBK (yet).
mikeCsix is offline  
Old 02-14-2019, 01:35 PM
  #8  
buckmeister2
CF Senior Member
 
buckmeister2's Avatar
 
Member Since: May 2015
Location: Las Vegas Nevada
Posts: 3,497
Thanked 411 Times in 364 Posts
Default

"...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.
buckmeister2 is offline  
Old 02-14-2019, 02:07 PM
  #9  
RickC6
CF Senior Member
 
RickC6's Avatar
 
Member Since: Jul 2016
Posts: 102
Thanked 11 Times in 10 Posts
Default

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 02:09 PM.
RickC6 is offline  
Old 02-14-2019, 03:45 PM
  #10  
Jughead
Senior Member since 1492
Support Corvetteforum!
 
Jughead's Avatar
 
Member Since: Aug 2000
Location: 1.Just because I'm paranoid doesn't mean people aren't out to get me... 2.Build the WALL!
Posts: 72,362
Thanked 109 Times in 86 Posts
St. Jude Donor '09
Default

stock GS rotors

Jughead is offline  
Old 02-14-2019, 03:46 PM
  #11  
johnodrake
Moderator
Support Corvetteforum!
 
johnodrake's Avatar
 
Member Since: Dec 2002
Location: Lakewood Ranch FL
Posts: 34,937
Thanked 85 Times in 61 Posts
Default

I had the rotors Zinc Plated on my 06 Vert. Never had a rust issue.
johnodrake is offline  
Old 02-14-2019, 05:09 PM
  #12  
SPSandman
CF Senior Member
Thread Starter
 
Member Since: Aug 2018
Location: Fredericksburg VA
Posts: 126
Thanked 15 Times in 12 Posts
Default

Originally Posted by buckmeister2 View Post
"...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.
Yeah RickC is correct. It isn't where the pads comes in contact with the rotor. It is the little dip channel that goes around on the inside, about the width of a finger, and then around the hat area where the wheel is attached. I probably made it worse when I sanded off the rust initially with a dremel as I sanded down some other areas that weren't really rusty and now it is as well. I am guessing they are coated when they were new and maybe the original owner or the dealer cleaned that area and may have removed the coating. I will take a picture when I head out to show what I mean.
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.
SPSandman is offline  
Old 02-14-2019, 06:00 PM
  #13  
FatsWaller
CF Senior Member
 
FatsWaller's Avatar
 
Member Since: Aug 2017
Location: Etobicoke Ontario
Posts: 429
Thanked 89 Times in 70 Posts
Default

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 06:16 PM. Reason: Corrected for rear wheels.
FatsWaller is offline  
The Following User Says Thank You to FatsWaller For This Useful Post:
SPSandman (02-15-2019)
Old 02-14-2019, 06:13 PM
  #14  
MTsVette
CF Senior Member
 
MTsVette's Avatar
 
Member Since: Jul 2011
Location: O'Fallon Illinois
Posts: 1,065
Thanked 9 Times in 9 Posts
Default

Originally Posted by HBsurfer View Post
I used black caliper paint on my rotor hats and perimeter and it has held up well for five years now.
I painted my rotor hats high temp silver. The tarnished, old look wasn't appealing.

MT//
MTsVette is offline  
Old 02-14-2019, 07:09 PM
  #15  
919cw313
CF Senior Member
 
919cw313's Avatar
 
Member Since: Jan 2016
Posts: 3,165
Thanked 283 Times in 248 Posts
2018 C6 of Year Finalist
Default

Originally Posted by FatsWaller View Post
I painted the area you are describing using flat black BBQ paint..
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.
919cw313 is offline  
Old 02-14-2019, 07:32 PM
  #16  
PCMusicGuy
CF Senior Member
 
Member Since: Apr 2007
Location: Houston TX
Posts: 3,220
Thanked 92 Times in 71 Posts
Default

You could always zinc plate them at home yourself.
PCMusicGuy is online now  
Old 02-15-2019, 10:31 AM
  #17  
SPSandman
CF Senior Member
Thread Starter
 
Member Since: Aug 2018
Location: Fredericksburg VA
Posts: 126
Thanked 15 Times in 12 Posts
Default

Originally Posted by FatsWaller View Post
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.
Thanks, yeah will definitely be doing that as the rust is driving me crazy. Were the wheels sealed with something when it was new and wears off, or was this a thing even when new? Hopefully the former and it was simply some brake cleaning by someone that resulted in wearing that away.

Originally Posted by 919cw313 View Post
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 that is what I am thinking as well. I definitely want to do the calipers, but agree that the inside of the rotor would be a distraction in matching red as well. Think the black will look best and I will probably do that this weekend since it is a three day weekend. Not sure if I will have the time to do the calipers now, and want to get the stickers I guess it would be as well. Didn't realize the corvette writing on the calipers was painted on as a bit of it started to smear when I put brake cleaner on them when I was changing the pads. Started rubbing there a bit and the letters started to smear a bit. Stopped as soon as I saw it, but not a huge deal and not noticeable and will be covered in red soon. Speaking of which is there a place that sells the Corvette decals to put back on the calipers, that matches the design on it now? I have the GS Calipers, so they are just like Jughead's and FatsWaller's.


Originally Posted by PCMusicGuy View Post
You could always zinc plate them at home yourself.
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 10:34 AM.
SPSandman is offline  
Old 02-16-2019, 12:38 AM
  #18  
Knob Jockey
CF Senior Member
Support Corvetteforum!
 
Knob Jockey's Avatar
 
Member Since: Oct 2007
Location: Edgewood Washington
Posts: 8,982
Thanked 146 Times in 125 Posts
St. Jude Donor '11-'12-'13-'14-'15
Default

Originally Posted by johnodrake View Post
I had the rotors Zinc Plated on my 06 Vert. Never had a rust issue.
Originally Posted by PCMusicGuy View Post
You could always zinc plate them at home yourself.


I had mine zinc plated locally 12+ years ago. Still look great with no rust.




Knob Jockey is offline  

Thread Tools
Search this Thread
Quick Reply: Rusty Rotors


Sponsored Ads
Vendor Directory

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: