[TechAssist] Re: CRT coolant??

The coolent is make for optical use and not a standard mixture.
Phillip R Hull
phil245@xxxxxxxxxxxxx
----- Original Message -----
From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, May 30, 2002 10:20 AM
Subject: [TechAssist] Re: CRT coolant??


>
> There is nothing really special about the coolant.  It is a mix of
glycerine
> and ethylene glycol.  The ethylene glycol works as a coolant and the
> glycerine aids in optical coupling and release of bubbles.  Most suppliers
> sell it much cheaper than you can buy from the OEM.  I doubt that you
would
> find such a mixture at an auto parts dealer.  As for the RTV sealer, I
have
> used it and never have a problem.  Just use a very thin layer so that the
> original gasket is assisted by the sealant and let is dry thoroughly
before
> filling with coolant.  The acid  released when the sealant cures might
> interact with the coolant, but I doubt it.  I just don't like to take
> chances.  After the sealant cures thoroughly it no longer releases
> significant acid.
>
> While I generally agree with the recommendations to use OEM parts &
> supplies, I also believe that a good understanding of the materials and
> functional properties of the parts used often results in the ability to
save
> time, increase profits, and assure a better repair.  I am confident that
my
> jobs where I reused a good gasket and used RTV sealant provides a better
> seal than would result with a new gasket and no sealant.  Of course, if
the
> gasket is damaged in any way, I would replace it...
>
> Leonard G. Caillouet
> Service Manager
> Electronics World
> Gainesville, FL
> 352-332-5608
> 352-332-5668 (fax)
>
> ----- Original Message -----
> From: "Terry W Rittenberry" <terrys-tv@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Cc: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, May 30, 2002 9:47 AM
> Subject: [TechAssist] Re: CRT coolant??
>
>
> >
> > You can buy it from many electronic parts company's.
> > I would not put any other except what is recommended.
> > Sometimes it is called coupling fluid.
> >
> > Terry
> >
> > Terry's TV Service
> > 4300 Wyoming Avenue
> > Nashville, Tennessee 37209
> > 615-385-1174
> > terrys-tv@xxxxxxxx
> > On Wed, 29 May 2002 17:08:35 -0400 Larry <schntv@xxxxxxxxxxxx> writes:
> > >
> > > What is the coolant in projection tube lens assy?
> > > I have heard that automotive parts stores carry it.
> > > and can I use RTV silicone sealant to seal gasket?
> > > Thank you,
> > > Larry
> > >
> > > --
> > > Schneider TV & Electronic Inc.
> > > 5415 N. Wooster ave.
> > > Dover, Ohio 44622       www.geocities.com/schntv2000/
> > > 330-343-0768         FCC. first class & Extra class K8WLY
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