copperslip or ??

[clive f]

having been fed up with a squeel on the front brakes, APcalipers, I am in the process of a strip and clean, but what is the best anti sieze compound to use on the backs of the pads and shims?


Its been suggested to me to try an aluminium based grease, but I can`t source any quickly on the island, but I also seem to remember someone on here saying about using silicon is my memory having a mad moment or is this used for this application` or just stick with copperslip, any tips appreciated.

[high52kojak]

I used the anti-squeal pads from Clever Trevor. Plus silicon.

[Steve_T]

It's usually the rear pads that cause the bother, but yes people have siliconed pads to pistons to cure the squeal. I've used the anti squeal shims (adhesive pads) that Clevor Trevor sells and these work too.

[clive f]

so I take it the silicon lasts longer and does a better job?

[Steve_T]

Dunno - definitely cheaper though!

[clive f]

cheers, I`ll give the silicon a go and see what happens.

[450Nick]

I usually use copper slip. It works fine until they get really wet, then it washes off so maybe silicone would work better?? Keep us posted!

[JensenA]

A smear of silicone on the back of the pad, so it sticks it to the rim of the pistons works fine Clive.

[markh1]

I have just put silicone on the back of my pads after the advice from someone on here as my pads were clattering. I put the silicone on the pads and left it to dry before putting them in the calipers. As my problem is slightly different from yours I am not sure if this is relevant or not?

[WorAl]

markh1 said:

I have just put silicone on the back of my pads after the advice from someone on here as my pads were clattering. I put the silicone on the pads and left it to dry before putting them in the calipers. As my problem is slightly different from yours I am not sure if this is relevant or not?

mark, has it stopped the clattering? my pads have started doing this again. I used Silicon the first time but didn't wait till it set then took it out, the brakes heated up and the silicon didn't stick however only just started tapping again after about 10 month.

[markh1]

I have not driven it since I put the silicone on so don't know yet. Looking at the weather forecast for this weekend, don't think I will get a chance to test until next weekend! I will report back with results.

[WorAl]

Excellent cheers, need to get mine sorted this weekend if I get time too, just wondering if there is any difference in the method. i.e. your setting first then putting pads back in or my putting pads in and allowing silicon to bond to piston?

[Steve_T]

If the silicon goes off too much it won't stick pad and piston together, which is what the anti rattle shims do.

[markh1]

Oh I thought that the silicone was there to act as a buffer/damper between the pistons and pads to stop the rattling. I did realise the idea was to stick the two together. As I said I will report back on how it works.

O/T Steve I got your email (went into my junk) I now have the right diagnostics cable thanks, hopefully I won't need it for a while though!

Edited by markh1 on Thursday 29th April 11:26

[nakedguy]

this may seen like a daft question but what is it that causes the brake squeal, i thought it was the pad material contacting the disc?

[haircutmike]

nakedguy said:

this may seen like a daft question but what is it that causes the brake squeal, i thought it was the pad material contacting the disc?

It's the pad working up a high pitched vibration/chatter.

I silicon the back of the pads and shove them straight in, works every time.

My problem was occasional squeel and pad chatter, (Bremsport calipers), now just a distant memory .

HCM.

[450Nick]

I get more of a creaking. If the pad gets very dry at the back, the piston obviously judders across the back very slightly so the brakes creak when pressing them (you can feel it through the pedal). A bit of copper slip on the back of the pads cures this completely though... On Wilwood 4 pot calipers...