I can give you one data point. NAPA brand silicone brake fluid is much
lighter than water (it floats).
> From: Chris Kotting <ckotting@core.com>
> Reply-To: Chris Kotting <ckotting@core.com>
> Date: Thu, 21 Sep 2000 16:36:45 -0400
> To: MGs <mgs@autox.team.net>
> Subject: Re: Brake Fluid
>
> That's sort of what I was thinking at the end of my last comment,
> however in reverse. If the SBBF is heavier than water, then any
> condensation would float on top of the fluid in the reservoir until it
> evaporated. It seems to me that a difference in specific gravity
> between brands could explain why some folks have a corrosion problem and
> others don't.
>
> Chris K.
>
>> Date: Thu, 21 Sep 2000 01:59:35 -0700
>> From: Bullwinkle <yd3@nvc.net>
>> Subject: Re: Brake Fluids
>>
>> If the brake system is of the older open type, water can/will continously
>> condense out of the air. At this point, I don't know if the water or
>> silicone
>> is heavier. If the water is heavier, it will sink and collect into the low
>> spots of the system.
>>
>> <<<snip>>>
>>> how is the water that's supposed to
>>> be catastrophically "pooling" going to get in there in the
>>> first place?
>>> Inquiring minds want to know.
>
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