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Silicone grease or compound? #4503849
08/31/17 08:41 PM
08/31/17 08:41 PM
Joined: Apr 2012
Posts: 2,590
West Michigan
buck91 Offline OP
buck91  Offline OP
Joined: Apr 2012
Posts: 2,590
West Michigan
Almost out of my Motorcraft XG3A dielectric and brake silicone compound so I'm looking for alternatives. The 3M silicone compound seems widely espoused but I would like to find something a little more cost effective if possible.

Looking at three possibilities.
Super Lube Silicone Dielectric Grease
Superlube Silicone lubricating grease with PTFE
Jet Lube Silicone Dielectric Compound
Super Lube also has a silicone Brake grease but that offers no cost benefit from XG3A or 3M.

I should elaborate that I need something to utilize for automotive brakes as well as weatherproofing electrical connections and lubing various rubber o-ring seals. I'm having a hard time finding any reason NOT to go with the Jet-Lube product as opposed to the others. Plus I can get a 14oz cartridge for a grease gun for the same price or less than a smaller package others. Won't help for my primary use but would allow me to use it with poly bushings on the mustang as well...


2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop
Re: Silicone grease or compound? [Re: buck91] #4503881
08/31/17 09:20 PM
08/31/17 09:20 PM
Joined: Jul 2009
Posts: 432
Seattle
Superflop Offline
Superflop  Offline
Joined: Jul 2009
Posts: 432
Seattle
I use dynatex dielectric grease good and thick not that runny stuff dynatex dielectric grease


2002 saab 9-5 2.3t wagon
2014 dodge grand caravan
Re: Silicone grease or compound? [Re: buck91] #4503888
08/31/17 09:28 PM
08/31/17 09:28 PM
Joined: Aug 2017
Posts: 211
Cincinnati, USA
Dave9 Offline
Dave9  Offline
Joined: Aug 2017
Posts: 211
Cincinnati, USA
Once you determine you need silicone, the next step is viscosity. A product that tries to be a dielectric grease and brake grease too, compromises on both.

Get the 3M for brakes and bushings, and something like Permatex 22058 dielectric for electrical apps. If you use the right grease you don't waste any and decrease maintenance.

You shouldn't need to reapply 3M grease often enough to need grease jerks. That's more often needed when people use the wrong lube so they have to keep reapplying it. Maybe if this is a racing application but in that case I think you'd want to replace bushings more often.

Ironically, I could easier see someone skimping on oil when it's just going to replaced every few thousand miles than skimping on lube when it costs less, much less considering how long an 8oz container of 3M would last the average person.

If you just want me to say buy a cartridge of whatever, you can do that without anyone's approval. Those are not "bad" per se, but if you're only buying based on cost and not the viscosity relative to the application... one size fits all things, rarely do best at anything they do.

Re: Silicone grease or compound? [Re: buck91] #4503921
08/31/17 10:45 PM
08/31/17 10:45 PM
Joined: Mar 2016
Posts: 1,425
Western S.C. since 1996
CR94 Offline
CR94  Offline
Joined: Mar 2016
Posts: 1,425
Western S.C. since 1996
Super-Lube's silicone brake grease and their silicone lubricating grease with PTFE are the same thing, as best I can tell. Their dielectric grease is different.


2011 Toyota Prius now at 92K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: Silicone grease or compound? [Re: buck91] #4503982
09/01/17 02:20 AM
09/01/17 02:20 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Dow Corning 111

Re: Silicone grease or compound? [Re: buck91] #4511096
09/08/17 06:42 PM
09/08/17 06:42 PM
Joined: Apr 2012
Posts: 2,590
West Michigan
buck91 Offline OP
buck91  Offline OP
Joined: Apr 2012
Posts: 2,590
West Michigan
So picked up a cartridge of the Jet-Lube Silicone Compound DM, which they advertise as a direct comparison to Dow 111. Loaded it up and greased the Mustang bushings (not test drive) as well as using it on the Explorer's brake job today. Seems....like....silicone grease. Actually, they note it to be thrixotropic which it does seem to be. Initially it feels thicker than the Motorcraft but after using the grease gun for a little bit it seems to come out a lot easier and felt softer.


2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop

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