Originally Posted By: spk2000
This is considered a downfall of ceramic pads. They do often have a squeal under light loads. These pads should have a built in shim with the nitrile coating on it. Anti squeal or grease on back of pad will eat the dissolve the coating.
It has been my understanding that brake pad manufacturers who make pads with bonded or integrated shims [that are nitrile coated or not] do not expressly instruct utilizing brake grease on the shims. I can't remember exactly who doesn't recommend grease or where I read it on here but I believe that Akebono ProACT pads may be one of the ones I recall. I don't use grease on the back of pads that have bonded/integrated shims and have had minimal noise sans when there is brake dust buildup, after a car-wash or rain. I do make sure that the mating surfaces are clean [piston edges and caliper 'ears' that contact the pad]. If the shims are loose clip-on style, then I use grease in between the shims and the pad's backing plate [but usually none between the shim and caliper]; some OE designs use a two-layer shim system, however, I am noticing more and more OE/Aftermarket fitments that have bonded shims.