samsam5886

When I first got my brake pads, I noticed a nice bluish layer transferred onto my rotor when I bedded the brake pads in. Now after some street driving, that layer is gone. Should I bed in my brake pads again before heading back out to the track? Or is it a one time thing you do with new brake pads?

assalbert

what kinda pads are you using

cfap2

It all depends on how you bedded in your pads. If you were really hard on them, there is a good chance that you glazed over your pads.

How do your brakes feel?

rob.ok

Street driving on race pads (especially aggressive ones) effectively resurfaces the rotors. You are more or less grinding off the surface and your pad transfer. For maximum performance, you should re-burnish them.

-Rob

krazik

I never bothered to when my car was still on the street.


squeeeeeeeeeeeeeeeeeeeeeeek

assalbert

the bluish tint comes from the heat generated by burnishing new pads. almost any type of aggressive pad material will take off some transfer film during street driving, even street/autox/light track pads such as ax6 or hp+. although i hope you're not driving around with full race pads. like rob said, all you need to do is re-burnish them and you're good to go. or, you can just drive to the track and burnish them there which would be much easier and safer.

macr88

Once a pad is burnished there is no need to burnish them again.

Call the pad manufacturer and ask them what to do, you will get their correct answer.

samsam5886

Thanks for the responses! They are Carbotech XP10/XP8 pads.

Wildncrazy

As I understand it the bedding in process is to get rid of the volatiles left in the pad from manufacture and therefore you wouldn't need to re bed your brakes.

spets

Read this:

http://www.stoptech.com/tech_info/wp_bedintheory.shtml

Basically, the bluish tint is going to be the transfer layer from the pad onto the rotor. street driving the brakes means they don't get hot enough to transfer material and instead the transfer layer gets worn away by friction.

What I would do, I wouldn't bother bedding them in again on the street. But when you get to the track, just be aware that you're not going to have ideal braking during your first session since your brakes will be working on putting a new transfer layer onto the rotors.