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3m Pad+rotors=???

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Old Feb 26, 2010 | 11:42 PM
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CA 3m Pad+rotors=???

I Was Looking For Some Info On Resurfacing Rotors And Came Across A Thread Were Someone Advised On Taking A 3M Pad(sandpaper) And Sanding(Buffing) The Rotor.
Can This Be Done?
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Old Feb 27, 2010 | 12:15 AM
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Do this to rough up the surface and remove some of the pad deposits on the rotor...

Doesn't replace turning the rotor if that is needed
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Old Feb 27, 2010 | 02:28 PM
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Will Any Type Of Grit Do Or It Has To Be a Certain Grit?
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Old Feb 27, 2010 | 03:48 PM
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No specific grit required, just something course. The proper way to do it is of course to get your rotors turned.
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Old Feb 27, 2010 | 04:42 PM
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what exactly are you looking to do?
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Old Feb 27, 2010 | 05:56 PM
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In order for a brake pad to properly work it must lay down a layer of transfer film on the rotor. If an existing layer of film (from a different type of pad) is present on the rotor when a new differing brake pad is used, there can be pad transfer film incompatability.

This sometimes shows itself as a vibration in the brake pedal when jumping on the stoppers. You would see this as a bunch of chatty looking splotches (I know, that sounds weird) on your brake rotor. What you want to see is a nice, even layer of transfer film on your rotor.

Removing this OLD transfer film with a 3m scotchbrite pad or better yet a 3m roloc disc or rubber disc with little tentacles on them (forget what they are called) with a drill is the ticket.

Again, you do not need to do this when replacing a ABC pad with another ABC pad.

Most people performing this exercise will freak a bit when they pull their rotors for the first time and see all the little cracks THAT ARE NORMAL.

Hope that helps.

Last edited by EricMeyer; Feb 28, 2010 at 05:26 AM.
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Old Feb 28, 2010 | 02:50 PM
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Just Trying To Remove Some Old Brake Pad Deposits.
Help Out The New Pads.
My Rotors Are Ok. 1st Time Changing Pads On The RX.

Know of any brake pad deals?

Last edited by eva02; Feb 28, 2010 at 03:10 PM. Reason: Brake Pads
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