From the EBC site:
[FONT=Verdana, Arial, Helvetica, sans-serif]3. Brake Squeal[/FONT][FONT=Verdana, Arial, Helvetica, sans-serif] - Automotive Only!
Brake squeal often happens during the first few hundred miles of use as pads bed in to a new or used rotor. Provided that you have the latest engineering specification of pad with center line slots, edge chamfers and black noise reduction shims on the reverse of the pads, please wait until you have achieved 1000 miles of driving before evaluating brake noise. If you have EBC Brake pads that do not have these shims, and are located in mainland USA we will post these to you free of charge. In early production some EBC REAR fitment pads did not have noise shims. We offer to mail these free of charge if you have rear brake noise which is the most common. Rear brake noise can develop even when rear pads have NOT been changed as the more efficient front pads take up all the brake load and leave the original rear pads under-utilised. This will necessitate changing the rear pads to the same pads as in the front or if the original rears are also non shimmed, you may be able to solve with adding shims to those. Ask us for a free set of shims for those pads which we are happy to supply at no charge. It is quite common with performance pads to hear a once only screech when REVERSING from a cold start. This is because of the change in geometry of pad and rotor alignment in reverse motion. When driving forward the noise should not repeat. [/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]9. Bedding in EBC pads [/FONT][FONT=Verdana, Arial, Helvetica, sans-serif]
In Street use situations …
Bedding in when the red EBC surface coating (marked on the pads as Brake In) is applied.
Best procedure is to drive gently avoiding harsh braking unless in an emergency for first 100 miles. In the second 100 miles (up to 200) you can use gently increasing brake pressures when using the brakes.
Only after 200 miles urban driving (not 200 miles on a freeway where brakes are almost unused) should you attempt to apply heavy load and heat to the brakes. To do this final bedding on a QUIET ROAD in safe traffic apply the brakes and slow from 60 to 10 MPH five times in a row. Then drive slowly for a few minutes if safe to do so to allow the brakes to cool. Try to avoid coming to a rest whilst the brakes are heated.
A smell may be noticed from the warm brakes, this is normal. Repeat this procedure a second time after the brakes have TOTALLY cooled down. EBC pads get better with miles. Even after this bed in procedure it can take up to 1500 miles before the pads are at their best. In the meantime the pads will be good and safe but true potential not realised. EBC makes performance pads that last, they do not bed in within 5 minutes driving. Noises will be more likely during the first 1000-1500 miles use whilst this chemical bedding takes place.[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]NEVER attempt to sand or scotchbrite brake pads to assist it bedding in or noise reduction,this will only make things worse by taking the pads "Off-Flat" and require hundreds of miles driving to seat them again during which time the brakes will feel very dull. The only way to seat pads is against the rotor they will be used on and by following our bedding recommendation.[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]Bedding in for trackday or race use …
We remind you there is NO WARRANTY on any EBC product for race use due to the very varying conditions that can be seen. However, care bedding pads in and monitoring wear will get the best from our products.
Most EBC pads including Yellow range pads now have the brake in coating. If possible and using a street based car, fit the pads before the race use and bed in as above for street use. Try to get 200-300 miles urban driving on the pads before racing them. If this is NOT possible and you fit at the track bed like this.
Drive two laps steadily applying the brakes every few seconds and then coast for a full lap without any unnecessary braking to allow pads and rotors to cool down. Drive a third lap applying the brakes slightly harder each time and again drive a cooldown lap. Do NOT pull up and park the car with the brakes red hot, try to let them cool as much as possible before coming to a rest. It is also important to understand that the pads must be geometrically matched to the rotor (flat and parallel) before they will bed in chemically. If you do the above bed in and get violent fade first use you MUST repeat the bedding procedure. We get lots of new customers calling in saying my brakes have faded and when they send a digital the pad is only touching on 70-80% of its surface area. Fade early in a pads life is almost a good thing. It is called GREEN fade and will disappear so if you suffer Green fade (you will notice this by smell), you are on the right path and this is not a negative. If you are getting fade after 20 laps and the pads are part worn, then something else needs looking into such as material choice, bleeding of the system, driving style etc …[/FONT]
