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Just wondering if any one has had this problem. A while back i purchased brake rotors from a popular auto parts store. Not sure I can mention name here. I purchased the top of the line rotors for a Nissan Sentra 2007 front wheel drive. I had to special order and wait a day. To my surprise the complete rotor was painted. I asked about this because far as I know you dont want anything on the brake surface. They said it was a powder coating and that i didnt need to remove it and that it would come off on its own. I put these rotors on and right a way I experienced shuddering when trying to stop. Since i didnt have time to remove them , I drove vehicle that week and removed them the following weekend. As I expected, The pads and the rotors had that paint embedded in the shoes and rotors. You could see where the shoes werent making good contact. Wish I had taken pictures. So I spent the afternoon cleaning shoes and rotors which took a while. The vehicle seemed to do ok except for when trying to stop at a higher speed. I thought maybe it would get better however it got worse. So last week I took rotors off once again and exchanged them for a new set and of course I replaced shoes too. this time a bought a slightly cheaper set minus the paint because the better one had paint. So far so good. They did refund my money so all is good there. Just hate wasting my time like that. Just wondering if anyone else had this problem. Store says no one else has had this problem. Just hard to believe.
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when you do your rotors make sure the hub surface is clean of rust and debris so the rotor has an ice even surface to sit on, when i bought my bosch rotors a while back they where covered completely in a silver coating that wore off to bare metal after a little bit of driving on the contact surface of the rotors, have not had any issues with them in fact i say the brakes on it now are still better after a year than when i got the car.
Thanks for the heads up on that one; I have seen the rotor hats painted, but never the rotor surface.
It is just good to know you are able to stop now, happy motoring!
I replaced my rear rotors about six months ago. The new ones that have a silver powder coating, and I believe they were made by Raybestos. The pads removed the coating within a day. I removed the corrosion from the wheel hub, as aceofspades mentioned. I haven’t had an issue with them yet.
I’m wondering if they were returns and someone had painted them. I’ve never encountered that. I have seen the grey coating that was described above. It’s sometimes used instead of cosmoline to inhibit rust. I’ve never had an issue with it. I just put the pads on and the coating wore off after the first few brake applications. What you describe sounds like actual paint. I’m very confused by that.
Lastly, it’s a little known fact that many rotor and drum manufacturers want you to machine the surface of new rotors and drums then wash with soap and water before installation. No one does it, but it’s recommended. I think it’s to cover their butts in the event of a pulsation out of the box. That would mostly likely be caused by issues with shipping. If it’s on the bottom of the pallet, there’s a lot of weight that can warp a new rotor.
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