No, it's not the sticky oil stuff they put on them to keep from rusting
in the box. If I get those I always put 'em in the sink and scrub them
with dish soap, which makes the wife upset. ;)
These are EBC rotors, which I don't think they make anymore, I bought
them as an early Christmas gift to myself in late-October when I had
some spare cash. They're slotted and dimpled (not cross drilled) and
have a "black zinc" coating on some surfaces of the rotor, said to
"prevent corrosion". It wears off the friction surface of the rotor,
but stays in the dimples and slots to keep them from rusting, and
supposedly prevents corrosion on the other surfaces of the rotor.
I do believe in a few firm stops to bed the rotors in and "season" the
pads, but I think this only applies to "performance" items. I don't
think it's much use for a cheap set of pads and resurfaced rotors that
most people drive around on.
In fact, I did this once with a friend's parents Suburban after doing
the front brakes, and caught the front pads on fire (oops). We drove a
bit and they went out. ;)
M.B.
On 09/20/2010 11:35 PM, TerribleTom wrote:
> Please clarify what you mean by "anti-rust" coating... I notice you have
> cross drilled slotted discs - so you did not opt for the standard OEM
> spec rotors... which could mean that the "anti-rust" coating you speak
> of is some high tech cryogenically applied monkey grease developed by
> people smarter than I am.
>
> Because in the aftermarket parts houses "anti-rust" coating is a fancy
> way of saying the rotors are lightly coated in machine oil. Which needs
> to be hosed off with a healthy dose of brake parts cleaner. You never
> want oil between your pads and rotors. I have some back yard mechanics
> tell me I'm a fool and that the oil gets "burned off" after you drive it
> for a while. I've also not been a big fan of "take it out and do hard
> braking" to set the pads. Thats a sure fire way in my book to build up
> excessive heat, glaze your disc and pad friction surfaces, and warp nice
> new fancy rotors. Easy, normal braking is what I have always used on new
> brakes I have services, and its what I recommend to customers.
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