Can anyone tell me what they use to scrub there rotors down? I have pad deposits from the track that make the rotors feel warped.

Do you guys use sandpaper? If so, which grade?

Thank you

 

60 or 80 grit garnet paper works pretty well. Make sure you buy lots of sheets as it will wear away quickly. The garnet is very hard and gets through the surface better than other abrasives.

Chris.

 

for general cleaning, try this:

https://www.s2ki.com/forums/index.php?showtopic=227069

 

From the Stoptech page at http://www.stoptech.com/whitepapers/...tors_myth.htm:

"The obvious question now is "is there a "cure" for discs with uneven friction material deposits?" The answer is a conditional yes. If the vibration has just started, the chances are that the temperature has never reached the point where cementite begins to form. In this case, simply fitting a set of good "semi-metallic" pads and using them hard (after bedding) may well remove the deposits and restore the system to normal operation but with upgraded pads. If only a small amount of material has been transferred i.e. if the vibration is just starting, vigorous scrubbing with garnet paper may remove the deposit. As many deposits are not visible, scrub the entire friction surfaces thoroughly. Do not use regular sand paper or emery cloth as the aluminum oxide abrasive material will permeate the cast iron surface and make the condition worse. Do not bead blast or sand blast the discs for the same reason."

Read the whole page for better understanding...

 

The best way to completly remove the deposits is to turn the rotors. I tried hand sanding and the roughness comes right back because the pad material is imbedded to deep into the rotors surface. I turn my rotors after every track day because the race pads are so hard on the rotors. I also have one set of rotors for the track and one for the street because they are so cheap.