Flash rust on rotors.
05-04-2011, 05:37 AM
#1
Flash rust on rotors.
Ok, this irritates me. Every time after I wash my car, I see all four rotors have flash rust. What can I do to get rid of it? Paint it with clear rust resistant high temp paint?
See the build up around the rotor hats, the rotor surface that is not in contact with brake pads.
A better pic with ugly rust area I was referring to.
See the build up around the rotor hats, the rotor surface that is not in contact with brake pads.
A better pic with ugly rust area I was referring to.
Last edited by Kuhan; 05-04-2011 at 12:02 PM. Reason: added another pic
05-04-2011, 06:15 AM
#2
Super Moderator
MY350Z.COM
MY350Z.COM
iTrader: (8)
Don't wash your car, thats really the easy way. High temp paint on the rotor surface just outside the sweep area will get burned off
05-04-2011, 06:43 AM
#4
I only care about the surface where the brake pads don't make contact with the rotors, which is an 1/2" between the calipers and the rotor hats.
I just did a quick search and found this VHT Gloss Clear Caliper Paint, which should hold up to 900 degF. I will that a try.
http://www.cacustomcoatings.com/clear-paint.html
I just did a quick search and found this VHT Gloss Clear Caliper Paint, which should hold up to 900 degF. I will that a try.
http://www.cacustomcoatings.com/clear-paint.html
05-04-2011, 04:33 PM
#6
Problem that plagues everyone... I've heard of zinc plated rotors (zinc oxide is white, doesn't look too bad) but that's about it. Problem is whatever you use to cover it up may just flake off - adhesion is difficult when this stuff is going through such wide temperature swings. Whatever you use to coat it has a different coefficient of thermal expansion compared to your rotors, therefore it is very likely to flake.
Last edited by Wired 24/7; 05-04-2011 at 04:35 PM.
Trending Topics
05-04-2011, 11:22 PM
#14
I assume you will always have a little issue eith rust from rainy days an puddles, but when you wash your car you could always cover your wheels with a tarp or trash bag, and then come back and carefully clean your wheels after you've washed your car. That would probably at least lessen the issue
05-05-2011, 06:47 AM
#16
Problem that plagues everyone... I've heard of zinc plated rotors (zinc oxide is white, doesn't look too bad) but that's about it. Problem is whatever you use to cover it up may just flake off - adhesion is difficult when this stuff is going through such wide temperature swings. Whatever you use to coat it has a different coefficient of thermal expansion compared to your rotors, therefore it is very likely to flake.
I don't have that problem on any of our cars because the pads sweep the entire rotor surface. I think that's how a good kit should be designed, IMO.
05-05-2011, 08:13 AM
#17
I assume you will always have a little issue eith rust from rainy days an puddles, but when you wash your car you could always cover your wheels with a tarp or trash bag, and then come back and carefully clean your wheels after you've washed your car. That would probably at least lessen the issue
Here are a few pictures that I recently took this past weekend.
Last edited by Kuhan; 05-05-2011 at 08:14 AM.
05-05-2011, 09:54 AM
#18
Registered User
iTrader: (4)
Join Date: Sep 2010
Location: Gilroy, ca
Posts: 641
Likes: 0
Received 0 Likes
on
0 Posts
that rust will never come off, and has compromised the entire brake setup. i will gladly buy the garbage kit of of you for 100$ 
seriously tho nice car, post up results if you do use that clear.
seriously tho nice car, post up results if you do use that clear.
05-05-2011, 03:25 PM
#20
Pads aren't the problem. Swept area from the pads that fit in that rotor is the problem. In reality, it's the rotor that is too large for the caliper; it's a common thing so that there is more rotor volume to hold more heat, but this is the consequence.