I just bought some Rotora cross drilled and slotted rotors..and was recommended to have them cadmium coated, i was told it would extend the life of the rotors and eliminate future corrosion/rust..i was given a reduced price for this service. but i still do not know if i should do it..so i was just wondering what you all thought......

 

ummm....yeah......

 

even thought it will cost about $400 to do it, reduced from $550

 

Isn't that more then the cost of the rotors themselves? I would probably just buy new rotors in the future if that was the case, but I have never had a car long enough to actually require new rotors hehe.

 

yep that was exactly what i was thinking..these Rotoras cost me $400 and are suposed to be real good, the previous cheap ones i had rusted real bad right away, these are supposed to be good in that area, but this shop is preasuring me to get this coating done, and that this will never occur again, but how sure can that really be right

 

If you get corrosion on your rotors and you want to get rid of them, drive, and then brake. Corrosion isn't really a big problem. Even with 150 dollars off, I wouldn't do it. If you're spending 800 dollars on rotors...

 

about the corrosion on the rotors..my previous rotors developed rust, but like you said just driving got rid of it, but the non swept areas developed rust like the slotts and driiled holes, and especially the area around the center..here is a picture

 

That's actually a pretty good point. Not good enough for 400 bucks extra but a pretty good point. The idea is that iron rust is porous so can rust thoroughly (as opposed to aluminum rust which forms a shiny impermeable layer) which compromises the integrity of the rotors. That sounds bad, especially when compounded with the slots and drills that also "compromise" the rotors' integrity.

The thing is, it is WELL within the rotors' ability to handle street stresses and there are 300k+ miles cars out there with rotors whose unswept parts have 300k+ miles worth of rust.

I guess the coating would be the safe thing. If you frequently hit roads that put a lot of stress on your brakes, it might be worth the 400 bucks... but I still think it's overkill.

 

yeah i agree, i mean i would definetely do it without a second thought if these rotors would last a lifetime, but they don't so i am just going to install my better quality Rotora rotors and see how it goes, and if the same thing happens oh well be it

 

http://www.eastwoodco.com/shopping/p...roductID=16671

just get that so when you spray them to clean off the rust they will be zinc coated...

 

just ordered it looks like real good stuff, have you personally used it before

 

no but i got the info for it from the meguires site.

 

lol, just another reason why slotted and drilled rotors are a fail. Your rotors might develop a little bit of "surface rust" along the slots and such but you'll be fine. Don't waste your money on products that will give your rotor and longer "lifespan" They are a wear out item and I've always replaced my rotors everytime I replace my pads. The autozone blanks and the brembo blanks; all under $20 each; are more than enough for anything that you might throw at them.

Omg, you paid $400 dollars for ROTORS!!? Was it just the rotors are was it one of those "upgrade stage kits" that include pads and stainless steel lines?

 

dude no wonder u have to replace your rotors every time u change ur pads... u paid 20 bucks for em! Mine have lasted me a lonnnng time...

 

haha, I replace them because its a habit. I know I could use the same rotors for 50k miles buts its just a habit. I like my pads to have a fresh surface and not have to adjust themselves to whatever the rotors surface is now.