Why are these EBC brakes squealing like a garbage truck???

[prizmatik]

I recently purchased a 2001 A4. The original owner installed EBC Green brake pads, and they squeal horribly, sounds like a trash truck or a bus. Its horrible. They have plenty of brake pad life left, and the rotors are in good condition, I replaced them with a cheap set from Autozone I had laying around for my '03 A4, and no more squealing.
I have attached some pictures of the pads, anyone with experience with these pads, any explanations are welcomed.

[robertbutnar]

you probably need to apply anti squeek gel to the back of the pads so that there is no vibrations were the metal surfaces touch the cheap ones from autozone you have probably have shims so they didnt need the gel.

[prizmatik]

I noticed that the previous owner applied some sort of silicone to the areas where the brake pad base made contact to the brake caliper carrier. Of course I cleaned it all off before I installed my cheap autozone brakes. And I sprayed the back of the brake pads with disc brake quiet as I always do.

[sweets4style]

if you didnt turn the rotors before installing the new pads (old owner) that would cause the squealing from dissimilar materials on the rotor. If you put new rotors on my best guess would be to do a bed in procedure to get them nice and up to temp to shed any oddball material still left on them and bed the rotors in properly.

[prizmatik]

Well, I've had the Autozone pads on for about 5 days now, and they aren't squealing like a school bus. So, I will assume the EBC pads weren't installed with the proper disc brake quiet.

[CCA4]

I have EBC Red Stuff pads and they do squeak a bit. I assumed it had to do with the kevlar/ceramic friction material. Doesn't bother me too much, but then it doesn't sound like mine are as bad as yours are..

[Scientist]

I installed the red EBCs (kevlar/ceramic) and applied anti-sieze to the pads as I always do and they squeaked for about a week, which I find that unsusual. No more after that.

[bmarshall]

EBC pads come with anti squeel tape for the back of the pad you should have put it on

[Scientist]

Oh, I did that too.