Stoptech street pad users chime in
05-02-16, 10:09 AM
#16
I have about 5k now with the stoptechs. I initially had a ton of squealing with the stock pads. Took them off and found the Lexus dealership coated the wrong side with grease(inbetween the shim and pad). You would think all brake lube is the same, but it isn't. We have Brembo brakes that should require Brembo grease, which is very expensive and most brake shops(including Lexus dealerships) won't have on hand. I used lobuxracer's recommendation for grease...he actually recommended two that were equivalent to Brembo grease, and I used the 3M version. Threw that on both front and back shims, not a peep for 5k miles at low speed braking. And both greases you can purchase from Amazon.
Copaslip Antiseize Assembly Compound 3471
3M™ Copper Anti-Seize Brake Lube 08945
https://www.clublexus.com/forums/is-...ml#post6542349
Copaslip Antiseize Assembly Compound 3471
3M™ Copper Anti-Seize Brake Lube 08945
https://www.clublexus.com/forums/is-...ml#post6542349
05-02-16, 10:13 AM
#17
05-02-16, 11:02 AM
#19
The bed in procedure is just a general guideline and will be a little different for every car. The IS-F specifically has a pretty efficient braking system and will require more effort to work enough heat into the brakes. If your stoptech pads are squealing then you did not get enough heat into them during the bedding procedure. It's really that simple. Go re-bed doing more brake pulls down to 5-10mph and/or slows from higher speed (if you can do so safely), cool down and enjoy your quiet brakes 
I'd like to add this little bit as well since nobody seems to really clarify on this part of the bedding procedure but when you are doing successive brake pulls during bedding, they should be tightly grouped. You should be taking no longer than 10-15 seconds from the time you reach 5-10 mph to the time you're back up to speed and squeezing the brakes for your next pull. The idea is to gradually and continuously build heat and if you are driving around for too long between slows then you are letting the brakes cool too much and you won't get a good bed in cycle.
-Matt M.
I'd like to add this little bit as well since nobody seems to really clarify on this part of the bedding procedure but when you are doing successive brake pulls during bedding, they should be tightly grouped. You should be taking no longer than 10-15 seconds from the time you reach 5-10 mph to the time you're back up to speed and squeezing the brakes for your next pull. The idea is to gradually and continuously build heat and if you are driving around for too long between slows then you are letting the brakes cool too much and you won't get a good bed in cycle.
-Matt M.
Last edited by SpeedFreaksUSA; 05-02-16 at 11:16 AM.
05-03-16, 12:09 AM
#25
I used the shims that came with the pad for the rear cause the oem doesn't fit over it to double up.
In the front, I have the oem shims in as well on top of the ones with the stop techs.
05-03-16, 11:31 AM
#27
05-03-16, 04:26 PM
#29
I've also done this. The squeal isn't as loud as the stock pads; it's definitely something I can live with given the price of the pads.