Morgan Blue spreads new disc brake silencing paste on your pads

I have had great success with isopropyl on the rotor and a blowtorch on the pads until they stop smoking. Even organic pads. Then again, I don’t run Avid hydro’s.

One could also try making sure the posts are flat and then braking correctly. . .

Any type of brake can be noisy, rim brakes included. Before anyone says to just toe the pads in, sometimes that doesn’t do it. like anything, there are standard fixes for most but there is the occasional elusive problem that requires more drastic solutions. Just like the automotive equivalent, I doubt this will be very effective.

We’ve been successfully using copper slip like this to quieten brakes for a few years now.
I’d be interested to see how much (if any) more effective the morgan blue would be IRL.
I’m picking it’s going to be more expense than the copper slip (especially given the way the NZ agent charges like a wounded bull for pretty much everything they sell).

The problem with copperslip is it melts when hot and can drop onto the rotor. Plus it can degrade the piston seals of the calliper (Hope specifically say not to use Copperslip for that reason).

And also like the people who do extreme 4×4 driving say, it’s when you don’t hear any braking sound that you have to worry….

Problem : noisy disk brakes.
Solution : next time remember to bed them in before your ride your new bike.

Problem 2 : noisy Sram disk brakes
Solution : don’t buy Sram disk brakes.

Clean pad and true rotors are quite brakes. Do a little maintenance and do not use this crap.

Ahh, this must be what Shimano XTRs build into their brakes, because I haven’t heard a peep out of them since converting from SRAM years ago.

My observation may tick off the engineers and armchair engineers on this site.

As a shop monkey for many years, I have unscientific ally observed that shorter length pads create the infamous howl whereas longer pass tend to be quiet.

Regarding pad preps, I have isopropyled, torched, and backed pads with CRC Brake Quiet. I even tried Dyna-Mat. Nothing really helped Avids with exception of a slight improvement with the use of organic pads. The only brakes worse than Avids were Coda single pistons on early 4 bolt Cannondales. Long pads like Shimanos, Hopes, or Grimecas never game me issues personally.

I had this problem for ages. Tried all the different cleaners and the things would be quiet for a mile and a half and then back to squealing as the saying goes, ‘like a stuck pig’. Went to almost 25 bike shops asking about it before someone told me…
1. The regular cleaners are just Isopropryl Alcohol (IPA) which you can buy far cheaper on eBay than in a spray can and
2. The problem was caused by contamination on the pads and to try burning that off in the flame of the cooker.
Burning off the contaminants did solve the problem, but is unreliable as it’s easy to use excess heat which wrecks the pads. I then had a flash of inspiration that has solved the problem since. Here’s what I do:
Wash the pads, front an rear in washing up liquid. Put some washing up liquid on a small piece of medium grade sandpaper. Give the pads a gentle rub, enough to take off any glaze. Rinse and repeat until you can see nice, clean brake pad all over and then rinse thoroughly. Next wash the rotors (I use washing up liquid, water and kitchen towel for this). Now, for your first few brakings, the coefficient of friction is way down and your brakes will be very poor, so do several test brakings somewhere safe to boil off the water and any remaining washing up liquid, but then you should have excellent brakes back again. Been doing it for years now and it works a treat. If that doesn’t work, get yourself some better brakes ie the outstanding Shimano XT BR-785 or road equiv with ICE rotors, or whatever the current version is.

Everyone says how much better Shimano breaks are, but I have 2 bikes with XT disks (one brand new), and they both squeal so loud I am embarrassed to use my breaks. I have had 2 bikes with Avid/SRAM and never had an issue – they’ve always been quiet and worked perfectly. The shop has been no help getting them to quite down. Any ideas? I don’t understand.

Some good things and some bad. First lets start with how brakes work. When you bed new brakes in you are transferring pad material to the rotor. Once all the valleys are filled with pad material your brakes are working at their peak.

Noise comes from materials resonating. Some brakes are just noisier then others even when everything is right. Rotors that have a pattern that can repeat in the length of the pad will cause vibration. As the gas/air that gets trapped in the holes in the rotors expands while passing through the pads and then releases causing vibration. Sometimes this creates noise and sometimes it doesn’t. This will cause particular frames to resonate creating a squeal that sometimes cannot be fixed with the brakes that are on it. Changing rotors, pads and even brakes may not fix all problems.

Most squeaking brakes are condition related. Contamination is a big contributor, so when brakes are contaminated both the rotor and the pads need to be fixed. Surface contamination can be fixed. But sometimes pads and rotors cannot be saved. When cleaning your brakes follow manufactures recommendations, they are different!

As far as the product goes I wouldn’t use it.