Muriatic acid is what is put into swimming pools along with Chlorine (or
other suitable Halogen). It was also used to clean the patio surfaces
around the pool (also cleaned your feet it you did it bare-footed!). Any
acid (or base) can be dangerous in a high enough concentration.
I would be hesitant to experiment on my '79 Spitfire radiator with any "home
remedy" for cleaning it. Instead I flush often, and flush with water. The
inside of my radiator looks like it did the day it was born. I have also
found that going high on the antifreeze concentration and using
de-mineralized water will also keep the inside of the radiator looking like
new.
Reid
'79 Spitfire
-----Original Message-----
From: Fred Thomas [mailto:vafred@erols.com]
Sent: Wednesday, August 04, 1999 10:41 AM
To: Bowen, Patrick A
Cc: Craig Smith; 'Peter S.'; 'david'; spitfires@autox.team.net
Subject: Re: cooling system
Remember we drink Coke-Cola, but it will eat a nail up over night, and no I
will
not walk in a Muriatic Acid.
"Bowen, Patrick A" wrote:
> Craig, Maybe my battery is different then yours but that battery acid
> (sulphuric acid) hurts like hell when I get it on my hands!!!
>
> Patrick Bowen
>
> -----Original Message-----
> From: Craig Smith [mailto:CraigS@iewc.com]
> Sent: Wednesday, August 04, 1999 11:51 AM
> To: 'Peter S.'; Craig Smith; 'david'; spitfires@autox.team.net
> Subject: RE: cooling system
>
> acids are not as caustic to some surfaces as others.
> I have used streaght muratic on the deck of my pool barefoot. Eats the
hell
> out of the concrete but doesn't bother my feet.
> I would not use full mol sulfuric for the same purpose much less put my
feet
> in it.
> Take battery acid, won't hurt your hands that much but will eat the hell
out
> of the paint on the car and your brand new blue jeans.
>
> -----Original Message-----
> From: Peter S. [mailto:alfapete@pacbell.net]
> Sent: Wednesday, August 04, 1999 10:49 AM
> To: Craig Smith; 'david'; spitfires@autox.team.net
> Subject: Re: cooling system
>
> Straight Muriatic acid is very strong. Don't use it straight if you must
> use it at all. The rad shops bottle must have been diluted. I used this
> stuff to etch my concrete garage floor before I painted it. Its nasty
> stuff! Just use off the shelf rad flush.
> Peter S
>
> ----- Original Message -----
> From: Craig Smith <CraigS@iewc.com>
> To: 'david' <engstrom@tstonramp.com>; <spitfires@autox.team.net>
> Sent: Wednesday, August 04, 1999 4:05 AM
> Subject: RE: cooling system
>
> >
> > I was at a local shop and watched a guy take standard muratic acid and
> pour
> > some down a radiator be fore they went to put it in the "tub" to check
for
> > leaks.
> > This stuff is cheap and can be bought most everywhere.
> > The other acids even diluted might be a little strong.
> >
> >
> > -----Original Message-----
> > From: david [mailto:engstrom@tstonramp.com]
> > Sent: Tuesday, August 03, 1999 11:15 PM
> > To: spitfires@autox.team.net
> > Subject: cooling system
> >
> >
> >
> > Hello to everyone. Anyone have any thoughts or experience with
> > derusting a spit cooling system with phosphoric acid? I was pondering
> > filling my system with 0.1 molar phosphoric acid and running it for
> > maybe 20 minutes and then letting it sit overnight, then another 20
> > minute run, then 2 or 3 flushes to dilute the acid/rust out. I don't
> > think the acid would do any damage but I'm not sure. My system has a lot
> > of rust in it. I ran the engine at 2k rpm for a half hour and the temp
> > gauge equilibrated at the center of its range, also the engine never
> > felt/showed any symptoms of excessive heat. But, of course, I'm
> > concerned about local hot spots in the engine due to local coolant
> > blockage caused by rust deposits. This is a mk2 that sat for 10 years,
> > and has probably never had the cooling system cleaned. Also, anyone know
> > where can I obtain phosphoric acid?
> >
> > Thanks, David
> >
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