Rust on Rotors
-
- Regular Member
- Posts: 51
- Joined: March 9th, 2004, 2:01 am
- Location: U.K
Rust on Rotors
Fitted some new rear rotors and pads two weeks ago and the non contact areas on the rotors are already rusting, not flash rusting embedded corriosion any idea how to prevent this?
V6 MX-3, Black, 17" gunmetal chromes with 205/40/17.
Now gone: Autozam AZ-3(Jap spec MX-3). 91, 1498cc DOHC 120bhp as standard. Manual, A.C, 17" black chromes with 205/40/17. Stainless Steel Exhaust,Pipercross Filter, Eco-tek valve, Strut brace, Racing steering wheel.
Now gone: Autozam AZ-3(Jap spec MX-3). 91, 1498cc DOHC 120bhp as standard. Manual, A.C, 17" black chromes with 205/40/17. Stainless Steel Exhaust,Pipercross Filter, Eco-tek valve, Strut brace, Racing steering wheel.
-
- Regular Member
- Posts: 909
- Joined: March 15th, 2004, 2:01 am
- Location: Karlskrona, Sweden
- Contact:
I painted mine.
http://macen.nullnet.com/mods/brake_lines.php
http://macen.nullnet.com/mods/brake_lines.php
-
- Senior Member
- Posts: 3391
- Joined: November 30th, 2001, 2:01 am
- Location: Stuttgart, Deutschland
- Contact:
most rotors are cast iron. Some are actually an alloy of steel & iron, but iron is a good choice for them because it absorbs heat better which makes for better dissipation. Iron exposed to the outside air, especially air that is humid will rust.
Rotors will rust immediately upon exposure to water. If you buy a new rotor, spray some water onto it w/a fine mist sprayer, it'll pop up 10 minutes later w/orange rust all over its surface.
This is why I painted my outside & inside of my rotor before putting my pads on. I sanded off the paint in the middle & popped them on & so far they haven't rusted on the outside or inside:
![Image](http://www.clubprotege.com/wil/host/brakestuff/driversfront.jpg)
Rotors will rust immediately upon exposure to water. If you buy a new rotor, spray some water onto it w/a fine mist sprayer, it'll pop up 10 minutes later w/orange rust all over its surface.
This is why I painted my outside & inside of my rotor before putting my pads on. I sanded off the paint in the middle & popped them on & so far they haven't rusted on the outside or inside:
![Image](http://www.clubprotege.com/wil/host/brakestuff/driversfront.jpg)
Noble Green Metallic 93' GS Hybrid, 91' 1.8 323
DONATE TO MX-3.COM
DONATE TO MX-3.COM
- jschrauwen
- Forum Moderator
- Posts: 6052
- Joined: September 27th, 2003, 2:01 am
- Location: Frankford, Ontario, Canada
- Contact:
- Nd4SpdSe
- Senior Member
- Posts: 11212
- Joined: May 25th, 2002, 2:01 am
- Location: Québec City, Quebec, Canada
- Contact:
QFT!Gro Harlem wrote:most rotors are cast iron. Some are actually an alloy of steel & iron, but iron is a good choice for them because it absorbs heat better which makes for better dissipation. Iron exposed to the outside air, especially air that is humid will rust.
Rotors will rust immediately upon exposure to water. If you buy a new rotor, spray some water onto it w/a fine mist sprayer, it'll pop up 10 minutes later w/orange rust all over its surface.
1992 Mazda Mx-3 GSR - 2.5L KLZE : Award Winning Show Car & Race Car ['02-'09] (Retired)
2004 Mazda RX-8 GT - Renesis Wankel : LS3 Coils, BHR Mid-Pipe + Falken RT-615K 245/40r18
2011 Mazda Mazda2 GS - 1.5L Manual : Yozora Edition (1 of 500)
2003 Nissan Xterra SE - 4x4 Supercharged : 2" Body Lift, 4" Suspension Lift & 33" MTR Kevlar
2001 Nissan Frontier SE - The Frontrailer : Expedition/Off-Road Trailer Project
2004 Mazda RX-8 GT - Renesis Wankel : LS3 Coils, BHR Mid-Pipe + Falken RT-615K 245/40r18
2011 Mazda Mazda2 GS - 1.5L Manual : Yozora Edition (1 of 500)
2003 Nissan Xterra SE - 4x4 Supercharged : 2" Body Lift, 4" Suspension Lift & 33" MTR Kevlar
2001 Nissan Frontier SE - The Frontrailer : Expedition/Off-Road Trailer Project