Brakes and moly pastes

[buck91]

Seems like the latest consensus involves using moly paste on brake pad ears instead of silicone caliper grease with the favorite being Molykote M-77. Given the high cost and difficult availability of this product I did some quick amazon searching and came up with some alternatives. Looking for input on the best option for a daily driven year-round salt belt vehicle? In the past I've used Motorcraft silicone brake compound which has sufficed but really doesn't hold up in the open-elements application of brake pad ears.

- Molykote M77
- Honda Moly Paste (M77)
- Loctite Moly Paste
- Liqui Moly LM 508
- Liqui Moly LM 48
- Jet-Lube MP-50 (50% moly content)
- Jet-Lube Marine Moly (unspec moly content)

At this point I am leaning towards the 1 pound tub of MP-50 simply due to cost per volume and the fact one purchase should last indefinitely but haven't heard ANYTHING about this so wondering if it is really a good pick or if one of the other options stands heads and shoulders above the rest?


Edit: Looks like Liqui Moly products have pretty decent TDS available online. The LM48 seems to have a decent content of 33% moly 6% graphite but the LMM 508 looks to be more of a cooper antisieze with mineral oil and thickened with Li-12-hydroxystearate, so I guess that can be ruled out.

 

[SHOZ]

Where I use to work at one time they used Molykote in 55 gallon drums as a release agent. Near the end of the barrel the Molykote would fall out of suspension and there was always quite a bit of the white solids left int he drum. I brought home about a gallon container of solids.

Just some non relevant info I guess. Haven't heard the word Molykote in years.

 

[Hokiefyd]

I've read opinions both ways on it. I've serviced my brakes with both the M-77 (or similar) and with Sil-Glyde. I couldn't tell a difference between the two, really. I'll probably keep with the Sil-Glyde, only because it's useful for other purposes as well.

 

[SHOZ]

This is from the MSDS for Sly-Glyde

3. COMPOSITION/INFORMATION ON INGREDIENTS

Chemical/Ingredient Name |CAS-No |Weight% |ACGIH, |OSHA-PE|Other
| | |TLV-TWA |L |
Polypropylene glycol |25322-69-4 |30-60 | | |
Dimethyl silicone polymer|67762-90-7 |7-13 | | |
with silica | | | | |
Oleoyl Sarcosine Mixture |Not |0.1-1 | | |
|Available | | | |
Diethyl phthalate |84-66-2 |0.1-1 | | |
Glycine, |110-25-8 |0.1-1 | | |
N-methyl-N-(1-oxo-9-octad| | | | |
ecenyl)-, (Z)- | | | | |
N-Phenyl-1-naphthylamine |90-30-2 |0.1-1 | | |
| | | | |
Notes