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Old 04-28-2006, 11:29 PM   #1
shemoves
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Default How to tell if brakes are glazed?

I just put new pads on and tried to break them in properly. Is there a way to tell if the pads/rotors are glazed? And...what exactly is 'glazing?'
edit: I did search and have also been looking through stoptech's whitepapers...still don't know how to tell.
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Last edited by shemoves; 04-28-2006 at 11:42 PM.
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Old 04-29-2006, 12:13 AM   #2
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glazing is pad material deposited as a coating on the rotor.
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Old 04-29-2006, 02:21 AM   #3
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How can I tell if they are glazed? What would one vs. the other look like?
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Old 04-29-2006, 08:01 AM   #4
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if you doubt that there's a proper transfer layer, just go out and re-follow the instructions on stoptech's website (i used those instructions too, even though my carbotech pads came with their own). proper bedding-in will remove whatever was already there and will add it's own new transfer layer as well. if you over-heat your brakes (which is what SHOULD happen if you follow the directions) and avoid coming to a complete stop, you should get an even glaze. can't tell you exactly what to look for, but trust ya did a good job following a print-out
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Old 04-29-2006, 08:08 AM   #5
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if there is pad material on the rotor, you will see it as discolored regions. Usually it's only the pads which glaze - if you look at the business side of the pad it will be very smooth and shiny.
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Old 04-29-2006, 01:22 PM   #6
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ahh, so I'd have to take off the pad to check for glazing?
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Old 04-30-2006, 06:18 PM   #7
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http://www.raceshopper.com/tech.shtml#brake_pad_glazing

The rotors will typically have a bluish hue/tint to them and be smooth.
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Old 05-01-2006, 01:33 AM   #8
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Quote:
Originally Posted by Legacy777
http://www.raceshopper.com/tech.shtml#brake_pad_glazing

The rotors will typically have a bluish hue/tint to them and be smooth.
They will have this blue hue when glazed?
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Old 05-04-2006, 06:58 PM   #9
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Quote:
Originally Posted by shemoves
They will have this blue hue when glazed?
I can't say they will always be like this, but more then likely they will look a little different and be smooth.
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Old 05-05-2006, 10:26 AM   #10
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on my old car the rotors would become really smooth and polished. That would diminish the braking ability
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Old 05-05-2006, 03:25 PM   #11
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Unless you're next chunk of miles in your car is to the track where you need maximum performance from your brakes, it doesn't matter if you glazed the pads or not. Eventually, the glazed portion will wear down and you can rebed the brakes.

I had a set that apparently didn't bed well in one spot on the pad. I wasn't doing anything but driving on the street for the time being so I kept purposely stopping hard to sorta rebed when the opportunity arose. After awhile, I checked the pads and the "sticky spot" was completely gone. Obviously this only works if you have time to wear them down.
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Old 05-11-2006, 01:16 PM   #12
Legacy777
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We're (or at least I was) talking about glazed rotors....not pads. Having the rotors cut is pretty much the only 100% way to get rid of the brake pad material.
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