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Re: Anyone convert to SILICONE break fluid ? [Re: CMcAllister] #2909465
04/12/21 01:13 PM
04/12/21 01:13 PM
Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
The advantage of the silicon-based DOT5 fluid is that it absorbs no moisture whatsoever, unlike the glycol-based fluids. This is an advantage to older master cylinders that aren't sealed to the atmosphere

Because it is also chemically inert it won't react with other chemicals in your braking system, nor will it even react to your car's paint which the glycol-based fluids will.


The INTERNET, the MISinformation superhighway
Re: Anyone convert to SILICONE break fluid ? [Re: larrymopar360] #2909566
04/12/21 07:00 PM
04/12/21 07:00 PM
Joined: Jul 2008
Posts: 30,252
Florida STAYcation
dIc dOc Deity ! Offline OP
The village idiot's idiot
dIc dOc Deity !  Offline OP
The village idiot's idiot

Joined: Jul 2008
Posts: 30,252
Florida STAYcation
Originally Posted by larrymopar360
Originally Posted by Doc Fiberglass
LarryLOVEit... you must have been VERY TIRED typing that ALL OUT !

The humidity in Florida is a DOT3 fluid killer ... and THAT is a phenolic piston SWELLER tsk
No PhEnOlIc PiStOnS FoR Me. SteEl.


Well larry.. I’d LOVE IT ... if they made Caravan calipers with steel pistons

Re: Anyone convert to SILICONE break fluid ? [Re: doctor_mopar] #2909567
04/12/21 07:03 PM
04/12/21 07:03 PM
Joined: Jul 2008
Posts: 30,252
Florida STAYcation
dIc dOc Deity ! Offline OP
The village idiot's idiot
dIc dOc Deity !  Offline OP
The village idiot's idiot

Joined: Jul 2008
Posts: 30,252
Florida STAYcation
Originally Posted by doctor_mopar
I converted my Barracuda about 30 years ago when I put all new components . I have converted several other Mopars through the years , some with all new parts , and others by flushing fluid through , with great results both ways !


Well THANK YOU ancient one bow

I shoulda had yOu change it my motor home and 62 up in meeeechigan many moons ago penguin

Re: Anyone convert to SILICONE break fluid ? [Re: dIc dOc Deity !] #2909797
04/13/21 01:59 PM
04/13/21 01:59 PM
Joined: Jan 2003
Posts: 1,756
London, England
Gavin Offline
top fuel
Gavin  Offline
top fuel

Joined: Jan 2003
Posts: 1,756
London, England
Actually I don't consider the fact that silicone fluid won't absorb moisture as an advantage. It doesn't mean water can't get into the system, it just means it won't be absorbed, so what actually happens is that it pools at certain points, meaning you can get rust at those points. I think the only real advantage is that fact it won't spoil paint.

Re: Anyone convert to SILICONE break fluid ? [Re: dIc dOc Deity !] #2909847
04/13/21 05:04 PM
04/13/21 05:04 PM
Joined: Jan 2011
Posts: 15,713
Central Florida
larrymopar360 Offline
Stud Muffin
larrymopar360  Offline
Stud Muffin

Joined: Jan 2011
Posts: 15,713
Central Florida
Originally Posted by Doc Fiberglass
Originally Posted by larrymopar360
Originally Posted by Doc Fiberglass
LarryLOVEit... you must have been VERY TIRED typing that ALL OUT !

The humidity in Florida is a DOT3 fluid killer ... and THAT is a phenolic piston SWELLER tsk
No PhEnOlIc PiStOnS FoR Me. SteEl.


Well larry.. I’d LOVE IT ... if they made Caravan calipers with steel pistons
I don't have a carrotvan. Steel for my Dippy po-po.


Facts are stubborn things.
Re: Anyone convert to SILICONE break fluid ? [Re: Mr T2U] #2911965
04/19/21 02:49 PM
04/19/21 02:49 PM
Joined: Mar 2003
Posts: 3,358
Berwyn, IL
challenger70 Offline
master
challenger70  Offline
master

Joined: Mar 2003
Posts: 3,358
Berwyn, IL
Originally Posted by Mr T2U
JK you are CORRECT.
the 2 different fluids won't cause each other to gel.
the 2 different fluids won't mix with each other also.
they also have a slightly different compression rate so mixing A LOT of the 2 fluids together can give you troubles.

i have replaced regular brake fluid with silicone on a LOT of old vintage cars without flushing anything. i just remove as much fluid from the master as i can. them pour the DOT 5 in. now bleed the brakes until you see the DOT 5 come out of the bleeders.the DOT 5 will push most of the old fluid out of the system without giving you any troubles. after doing this to all 4 wheels i start over and bleed another cup or more of fluid from each wheel just to make sure the old stuff is out. i also like to tap on the brake lines to get any small air bubbles out that like to hide in sharp bends of the brake lines.

keep in mind DOT 5 brake fluid RETAINS AIR just like the old fluid does water. this is why you can't use it on ABS cars.
i also like to heat up the new DOT 5 in a pan of hot water to force any air mixed into the fluid when it sits on the shelf or shaken up during shipping.some installers don't do this and can never gets the brakes bled properly. this is why DOT 5 brake fluid gets such a bad rap.


DO A SEARCH on DOT 5 brake fluid. this subject popped up a lot in the past so there are multiple threads with the exact same info already here.


I have done it this way as well, no problems as of 3 years later.

Re: Anyone convert to SILICONE break fluid ? [Re: challenger70] #2912015
04/19/21 05:39 PM
04/19/21 05:39 PM
Joined: Jan 2008
Posts: 1,206
Minn
S
SportF Offline
pro stock
SportF  Offline
pro stock
S

Joined: Jan 2008
Posts: 1,206
Minn
You mean they sell a hydraulic fluid, brake fluid, that retains air? They would do that? When in the system, how does the air get in there? I've used this for decades and had no problems or special techniques of any kind. I think there is more BS on this topic than any other.

Re: Anyone convert to SILICONE break fluid ? [Re: SportF] #2912589
04/20/21 08:36 PM
04/20/21 08:36 PM
Joined: Apr 2006
Posts: 4,220
West Plains, MO
DrCharles Offline
master
DrCharles  Offline
master

Joined: Apr 2006
Posts: 4,220
West Plains, MO
The silicone fluid tends to entrain air bubbles ("foam") for a significantly longer time than the glycol. It doesn't trap it forever!
You just have to be careful pouring it, and bleed the master slowly...

I run it in my Dart, it's been working great for years and the pedal (nonpower disc/drum) is firm.

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