New rotors now have rust!
#1
Driver
Thread Starter
New rotors now have rust!
Just had my breaks replaced. The job included rotors and pads. Within a week I have rust build-up behind the rim. There is no rust where the pads come in contact with the rotors. Could this become a problem? It looks horrible! Is there an esthestic fix? I don't like rust on my GS!
#3
Lexus Test Driver
iTrader: (1)
Rust on the rotors is common. If you leave the car overnight and it rains, you'll probably see rust on the surface even just one day. It'll be get rid of when you use the brakes.
As far as the cooling vents and stuff, the only way to prevent it is to powdercoat the whole rotor, then machine off the surface area. That's probably cost more than effectiveness anyways.
As far as the cooling vents and stuff, the only way to prevent it is to powdercoat the whole rotor, then machine off the surface area. That's probably cost more than effectiveness anyways.
#5
Pole Position
iTrader: (3)
you cant anodize steel/cast iron! anodization is a process that deliberately forms an oxide layer of equal thickness on and penetrating the surface of the workpiece. what happens to steel when it rusts? it flakes, whereas aluminum pits. even anodizing wont completely prevent pitting in aluminum.
some aftermarket rotors are zinc plated or have a coating that resembles anodization to inhibit rust. when doing the brakes on my friend's benz, i noticed the rotors he got from the dealership had a coating that resembled primer. the coating on the braking surface is sloshed off after a few cycles. his old rotors were relatively rust free, but my rotors rust enough that i can shake the flakes out of the vanes.
2 piece rotors usually have an anodized aluminum hat to reduce weight (compared to a single cast piece), the hat is expected to last long enough to go through several vaned rotor replacements.
some aftermarket rotors are zinc plated or have a coating that resembles anodization to inhibit rust. when doing the brakes on my friend's benz, i noticed the rotors he got from the dealership had a coating that resembled primer. the coating on the braking surface is sloshed off after a few cycles. his old rotors were relatively rust free, but my rotors rust enough that i can shake the flakes out of the vanes.
2 piece rotors usually have an anodized aluminum hat to reduce weight (compared to a single cast piece), the hat is expected to last long enough to go through several vaned rotor replacements.
#6
Driver
Thread Starter
I had my GS in for a balance and alignment and the tech cleaned for the rust and applied some type of high temp coating to the hub of the rotors. Looks great. It will be interesting to see if it lasts.
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#9
Yup
Cadmium will not have rust but will have Bronze Gold look.
I went with the SILVER ZINC washed/coated Drilled and slotted rotors.
No rust. shines like an exotic. Have been using these Zinc coated rotors since 1999. In fact I'm running them on three cars presently.
Cadmium will not have rust but will have Bronze Gold look.
I went with the SILVER ZINC washed/coated Drilled and slotted rotors.
No rust. shines like an exotic. Have been using these Zinc coated rotors since 1999. In fact I'm running them on three cars presently.
#10
Lexus Fanatic
iTrader: (1)
All rotors will get rusted no matter what. It can show up in as little as 20-30minutes after a light rain. A little driving around will scrub the rust off right away. If you're referring about the hat area rusting, then get a coated rotor as others have mentioned here.
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