>Date: Wed, 16 Feb 2000 18:15:15 -0800
>To: Dick J <lsr_man@yahoo.com>
>From: Higginbotham Land Speed Racing <saltrat@pro-blend.com>
>Subject: Re: Titanium-Brake clean
>
>Close! Here's another one!
>Chlorinated solvent and water makes hydrochloric acid under the right
>temperature conditions. Not good for anything that is corrosion susceptible.
>Especially aircraft hydraulic systems. Which sometimes have Titanium in them.
>Skip Higginbotham ( 80 today)
>
>At 11:21 AM 2/16/00 , you wrote:
>>
>>
>>--- DOUG ODOM <popms@thegrid.net> wrote:
>>> List, I just came across this.
>>> "Do not use chlorinated solvents such as
>>> "Brake Parts Cleaner" around
>>> or on any titanium components (valves,
>>> retainers, etc.)"
>>> Does anybody know the reason for this or what
>>> is the problem.
>>
>>
>>I'll take a SWAG (scientific wild ass guess) at
>>this. The titaniaum brake systems are composed
>>of several pieces, some of which will probably be
>>more common steel. The chlorinated liquid
>>solvent could react between the steel parts,
>>which act as a cathode, and the titanium part,
>>which act as an anode, and you end up with a
>>primitive chemical battery. The solvent changes
>>it's chemical characteristics from straight
>>chlorine to any number or chorides (salts) and at
>>the same time changes the chemical composition of
>>the steel and titanium, probably making them more
>>brittle, if not actualy disolving them after long
>>periods of time. Not good for brakes. How
>>'bout one of you rocket scientists grading my
>>paper and if it's right, I want to print it and
>>take it home to my high school daughter! hee hee hee.
>>
>>=====
>>.............................
>>..........Dick J.............
>>......(In East Texas)........
>>....FX/GMR SC/P250-2........
>>.....Shelby 427 Cobra.......
>>.Hemis and Flatheads Forever.
>>.............................
>>Do You Yahoo!?
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