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Deglaze pads and rotors regularly? Yes/No? What about the transfer layer?

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Old 06-20-2012, 12:39 AM
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travisnd
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Default Deglaze pads and rotors regularly? Yes/No? What about the transfer layer?

Researching my brake pad/rotor situation discussed HERE. I came across THIS article that suggests brake/rotor deglazing as regular pre-race maintenance.

I thought the whole idea was to develop a transfer layer between the rotor/pad and then let it ride?
Old 06-20-2012, 01:01 AM
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KNSBrakes
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I think the glazing is the formation of various metallic oxides that don't support friction or heat transfer and thus remain on the surface and impede friction.
Old 06-20-2012, 06:43 AM
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AU N EGL
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stock car teams use new pads and rotors for each day of racing.

and If I am not mistaken the glazing is from too much heat or ie using the wrong brake pad for that friction level. too soft of a brake pad
Old 06-20-2012, 07:28 AM
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Scooter70
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Originally Posted by AU N EGL
and If I am not mistaken the glazing is from too much heat or ie using the wrong brake pad for that friction level. too soft of a brake pad
That's been my experience as well. The haze comes from severely overheating the pad and basically melting it. When that happened I used sandpaper and brake cleaner to "wet sand" the rotors and the pads.
Old 06-20-2012, 09:40 PM
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froggy47
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When there is "glaze" on either the pad or the rotor then the "transfer layer" of good pad material has been compromised.

Sometimes I get a little glaze spotting and then a few hard stops shreds it off, but if it's bad, like those pads in the pictures then a cleaning like they are doing is smart & then you put down a fresh transfer layer.

The only thing I would add is use garnet paper, not alum oxide or emory.

Old 06-20-2012, 11:21 PM
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69427
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Pardon my ignorance, but what does the glazing look like?
Old 06-21-2012, 06:51 AM
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AU N EGL
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Originally Posted by 69427
Pardon my ignorance, but what does the glazing look like?
a shinny metallic glow / reflection

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