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Old 10-22-2021, 01:27 PM
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Default Brake Caliper Grease

Getting ready to do brake R/R on Mama's Silver Bullet the recommended factory lube is Molykote M77 of course no one local carries it. They have a dozen other products in single use quantities to lifetime tubs. I'm wondering whose product is closest in composition to M77 it seems pretty trick based on the technical data sheet.https://www.dupont.com/content/dam/D...1-0186F-01.pdf
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Old 10-22-2021, 02:02 PM
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I should mention it is used mainly between the brake pads and shims and a couple other sliding points.
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Old 10-22-2021, 04:11 PM
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That stuff is just silicone grease with pixie dust, they moly does nothing for you. Standard brake grease is fine.
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Old 10-22-2021, 05:54 PM
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Ive found this stuff everywhere. Been using it, for longer than I can remember. Its purple, so its easy to keep track of where you have and how much is there.
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Old 10-22-2021, 07:04 PM
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Thanks I suspected I could substitute something locally available. Just wanted to be sure. I'm upgrading while I'm doing the R/R she does OK running the mountains but trusts the brakes more than I care for.
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Old 10-22-2021, 08:58 PM
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Quote:
Originally Posted by Shade Tree Welder View Post
...That stuff is just silicone grease with pixie dust...
Pixie dust is a chemical now?
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Old 10-22-2021, 10:24 PM
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Quote:
Originally Posted by Windy_Acres View Post
Ive found this stuff everywhere. Been using it, for longer than I can remember. Its purple, so its easy to keep track of where you have and how much is there.
Yeah same shit I got.

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Originally Posted by LKeithR View Post
Pixie dust is a chemical now?
Latest formula revision for snake oil. Environmentally friendly, carbon neutral, vegan, gluten free, soy free, nut free, certified organic and ketogenic.
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Old 10-22-2021, 11:11 PM
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The only part that had me wondering was the silicone carrier evaporating off at high temps and becoming a dry lube on the tech sheet. The Green BS didn't even pique my interest. I ended up with more or less the same High Temp Ceramic lube Bill and you are using.
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Old 10-23-2021, 11:36 AM
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Quote:
Originally Posted by Whitetrash View Post
The only part that had me wondering was the silicone carrier evaporating off at high temps and becoming a dry lube on the tech sheet.
That is why they use silicones in spacecraft. They dont boil off in vacuum,
or freeze when really cold. Also good dielectrics if you dont pollute them
with MoS2.

Moly is over used in lubricants. It has a place but it is a very niche place.
Likely using teflon in engine oils...

Moly is good for very very high loads at very low speeds. Think mining
equipment. Brakes are not anywhere near that kind of loading.
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Old 10-23-2021, 12:14 PM
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Speaking of spacecraft and teflon...

I picked this up the other day, at " Empty Pockets " the industrial scratch and dent store..

Dupont 8oz tube of grease...

Anyone wanna make a wild ass guess what they ask for this stuff, keep in mind its only 8 oz, like a big tube of toothpaste..
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