What is "lithium soap based glycol grease" and where do I get it?

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Vaseline is petroleum jelly, would that be compatible with the seals and brake fluid??
 
Found it.......

part no. 08887-01206, rubber grease.

comes in a squeeze tube, like toothpaste. it is exactly the same pink lube that is in the small packets included with the caliper rebuild kit that you need about 10 of, but only get one. cost about $8.
 
By the way, that's for caliper pins and I would guess the parking brake pivots as well. For pistons and things that may contact brake fluid I think you still want to use the glycol based grease.
 
Toyota Rubber Grease - 08887-01206

It's pink. It doesn't have much of a smell. I put it on my finger and it definitely did not wash off with water. If this is the fabled lithium soap based glycol grease as seems to be the consensus, the water solubility concerns are a myth.

Toyota Rubber Grease 08887-01206.webp
 
Could use brake fluid or silicone grease, some of the foreign parts stores sell rubber lubricant for brake systems. (I think I used brake fluid when I rebuilt my calipers on the 80, no problems since...) Bap-Geon or XL foreign car parts down here, I bought a small can when I was driving/maintaining an MGB-GT and rebuilt the entire hydraulic system.
 
I know, I'm just adding some documentation in case anyone's interested. The tube is like $8, so if you are planning ahead may as well get the right stuff.
 
There are two different products for very different applications:
1. Assembly lube for assembling the pistons in the bores of the caliper and master cylinder. This is a glycerin based product.
2. High temperature grease, for pins, pivots, backing plates and any other metal to metal contact surface.

Just don't use high temperature caliper grease as assembly lube.
 
Which of these are you folks using when doing brake jobs like swapping pads? TIA



I noticed that the TDS for the first product lists the chemical type as silicone, while the second one lists it as "synthetic grease". It's my understanding that you should use silicone when it's going to come into contact with rubber, like the sliding pins for the rear calipers, which pass through a rubber boot. In years past, I used "synthetic brake grease" on similar pins, and it obviously damaged the rubber boot, causing it to swell and tear. Maybe the second Permatex product is fine though, since it says "non-silicone, non-petroleum".

For what it's worth, here's what I use:

Greases.webp


3M Silicone Paste for sliding caliper pins. Castrol Red Rubber Grease for assembling pistons into bores. Dow Corning High Vacuum Grease gets smeared around the inside of the caliper pistons and the outer face to prevent rust. The High Vacuum Grease has an exceptionally high drop point, which is why I trust it to be smeared on the caliper piston.

Personally, I never grease the back of the pad or shim, and it's never caused a problem.

There's also Permatex Ceramic Extreme Brake Parts Lubricant, which is a purple goo with ceramic in it. It also says "non-silicone, non-petroleum".
 
Tremendous info gummy. Many thanks.

I applied grease to both sides of the plate with the slats per FSM. Interestingly, FSM doesn’t ask to use grease on the rear brake plates. .
 
Yeah, those brakes are just for looks anyway...
 
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