I have no problem talking to the tech

 

What is the name of the shop and techs name?

 

I'll send you a PM.

 

Thank you Adam for taking the bull by the horns.

Let us know how you make out.

 

I use a custom pad from Scott Adare Motorsports. They are amazing. They are expensive, have dust, make noise and will have to change out the rotors with each pad change, but I have never ever had a pad that stops like these. They never fade and stop like nothing I have ever used before.

 

I have the Carbotech Bobcats and have had no problems (and no rust???).

 

I have left a message with the service supervisor, I will update as I have information.

 

Called today still no call back.

 

Thank you for your business. We are an authorized Hawk Performance Dealer and would be happy to help anyone else out with the pads. Please post your feedback with the pads!

 

Adam, simply call the service rep in the PM that I sent you. He has first hand knowledge. The service manager (his boss) is likely not even aware of this issue as it was not an "issue" that warranted his attention.

Reluctantly, I am posting these pics of the Bobcats that were properly installed (high volume Corvette dealership with two master Vette mechanics who only work on the Vettes). These are after about two months of use. Over a week since any contact with water. I'm not sure if this is the front or rear set, but the other set has the same appearance. Four views provided.









Now, I'm not an expert on rust by any means but it sure looks like oxidation to me (rust) on these Carbotech Bobcats. Is this normal?? The Vette mechanics didn't think this was normal.

 

Just put the Porterfield 4S on my 10 Grand Sport yesterday, Had a problem with the ceramics on my 07. The squeal after 5000 miles drove me crazy. I will settle for 50-% less dust.

 

Thanks for the pics DropTopGal.

I can't say i've seen this before and i've changed many pads over the years. One thing comes to mind. When a car is washed have you ever notice that rusty looking film the rotor gets that goes away as soon as you brake? The pics remind me of that. However as i said once you brake it all goes away.

I'm puzzled

 

I have seen it on my stock pads...it happens when I wash the car and the rotors rust. If there is any water present it makes a soupy mess on the rotors when you move the car. The pads have a squeegee effect and the soupy water/rust run down the pads and so on. You can see in the pictures the outline of the water where the mixture has dried.
If you don't want them I'll take them and pay shipping.

 

looks to me like the pads are just picking up the rust that forms on the rotors after a wash. I'd say drive the car after you wash it. Otherwise you'll have the same problem with your new Hawks.

 

I agree with what others have said. It looks like the car was put away with the brakes still wet. If that was the case, it'll happen with any brake pads since it's the rotor that is rusting and not the pads.

For what it's worth... I've used the Carbotech Bobcat, AX6, XP8, and XP10 all with good success. The XP series is incredible on the track

 

Hey guys...

Yes, I realize that after washing the car, the rotors oxidize some and I immediately thought that could be it. Thing is, the car wasn't washed for at least a week, not exposed to water other than any humidity in the air, no rain, garage parked, and daily driven. Also, after washing the car, either my husband or I, drive the car around the neighborhood for a few minutes to get rid of any rotor oxidation. Hummm...

This was a finding when I took the Vette in for an oil change and wanted the techs to put that lube stuff on for a squeak that developed with the rear brake pads after about a month (2k miles). The squeak was only present during light braking which is sort of embarrassing and certainly annoying. Even after the techs applied the anti-squeak stuff, the squeaking issue persisted. Accordingly, I would have switched to the Hawk ceramics simply to alleviate the squeak. The oxidation on the Bobcats was a surprise and became the second motivating factor to try different brake pads.

FWIW, the Bobcats performed great. Very good feel, minimal dust, and better modulation than the OEM pads. The Vette mechanics felt that I was in NO danger from brake failure or compromise due to the oxidation. But it was rather odd to see the pads with oxidation.

After a couple of months with the Hawk "performance" ceramics, I'll post my observations. Thus far, the Hawk ceramics show no dust, have no squeak, and brake equally fine but with a different feel. The Hawks are not as catchy, but more linear when applying brake pressure. Hawk ceramics on the Grand Sport reminds me of braking that feels very similar to the Lexus IS350 F-Sport (current), BMW M3 (2005), and the Aston Martin Vantage (2007).

Hope this helps others who are researching this topic.

 

 

I'm in the same boat as ER Doc. Had it narrowed down to Hawk ceramics or Carbotechs for street driving. I can find lots of good reviews on the Hawks and they are cheaper. Leaning towards the hawks and TPS dimpled and slotted rotors. Anyone have this combo?

 

After looking at those pictures and talking with our Engineer we both agree that the rust is surface rust from the rotor. The pads are simply cleaning the oxidization on the rotor surface. If you look at the rust on the pad material you can see that it has been smeared or dripped on. Can friction material rust, yes, but not like those pictures. We have never seen friction material rust like that before. The metal backing plates can rust but that would take some time (a lot more time than a few months).

Our friction materials are mainly made up of Ceramic, Carbon, and Kevlar. We use some iron, but not much at all. Iron would be the number one material to rust in friction material. We use the least amount of iron in our compounds. Hawk uses a lot of iron so technically they would be subject to rust faster than ours. But, Hawk pads should not have any problem rusting either. In a braking system rotors are going to be the ones to oxidize (rust). You may not always see the rust because the brake pads are cleaning it off.

If friction material did rust it would look like tiny snowflakes within the dark gray/black compound material. It would NOT look like those pictures. If you want you can send us those pads and we will sand blast them and ship them back to you. You would probably end up with the same result if using the same rotors however.

Also, washing your car is not going to make your brake pads rust like that either. I would recommend driving your car and applying your brakes a few times after washing. The heat that is created will get rid of any water on or in the calipers, rotors, and pads.