Re: An Idea! for cap

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "RIAA/MPAA's Worst Nightmare" <mike.marcum-at-zoomtown-dot-com> 

So how is this stuff supposed to be contained? It sounds like it acts like
liquid helium (though that's not really messy).
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, December 04, 2003 5:41 PM
Subject: Re: An Idea! for cap


 > Original poster: robert & june heidlebaugh <rheidlebaugh-at-desertgate-dot-com>
 >
 > May I suggest DONT do it. I use silicon oil and if you have never used it
 > DONT. Silicon oil will crawl up the sides of a contained and all over the
 > outsides to make a mess. Even a screwed lid will make a poor seal to hold
 > silicon oil. I use silicon oil as a hot chemical resistant heating liquid
 > and it is messy. I use different viscosities from light mono-silane to
thin
 > greese and they all are messy and expensive.
 >      Robert   H
 > --
 >
 >
 >  > From: "Tesla list" <tesla-at-pupman-dot-com>
 >  > Date: Tue, 02 Dec 2003 17:15:05 -0700
 >  > To: tesla-at-pupman-dot-com
 >  > Subject: An Idea! for cap
 >  > Resent-From: tesla-at-pupman-dot-com
 >  > Resent-Date: Tue, 2 Dec 2003 17:30:01 -0700
 >  >
 >  > Original poster: "pjj" <tha3rdman-at-zoominternet-dot-net>
 >  >
 >  > I was thinking on an eariler post, that a paper cap's dielectric is
usualy
 >  > oil. Being a man of many hobbies in r/c cars shocks & diffs is silicon
base
 >  > "oil" off variing weights from 10 wt. to 250,000 wt. any idea where i
can
 >  > find the dielectic strenth of this stuff? and other stuff.
 >  >
 >  >
 >  > ----- Original Message -----
 >  > From: "Tesla list" <tesla-at-pupman-dot-com>
 >  > To: <tesla-at-pupman-dot-com>
 >  > Sent: Tuesday, December 02, 2003 10:00 AM
 >  > Subject: Re: Pungent Odor from HV Capacitors
 >  >
 >  >
 >  >> Original poster: "Crow Leader" <tesla-at-lists.symmetric-dot-net>
 >  >>
 >  >> ----- Original Message -----
 >  >> From: "Tesla list" <tesla-at-pupman-dot-com>
 >  >> To: <tesla-at-pupman-dot-com>
 >  >> Sent: Tuesday, December 02, 2003 12:28 AM
 >  >> Subject: Pungent Odor from HV Capacitors
 >  >>
 >  >>
 >  >>> Original poster: dhmccauley-at-spacecatlighting-dot-com
 >  >>>
 >  >>> I have a few high voltage capacitors that seem to be giving off a
 >  > pungent,
 >  >>> unpleasant type solvent smell.  Among these are some smaller Maxwell
 >  > metal
 >  >>> can type capacitors as well
 >  >>> as some grey GE type HV capacitors.   Also, both capacitors are
 >  >> practically
 >  >>> new and never used, so they aren't like some old leaking capacitors.
 >  >>>
 >  >>> Anyone have any ideas of what this odor is???
 >  >>
 >  >> Wow, could be lots of stuff. GE "Dielectrol (pick a number)" non-PCB
stuff
 >  >> smells musty and bad. The only caps I've ripped open that smell like a
 >  >> solvent would be some early 80's stuff from FCI that was impregnated
with
 >  > I
 >  >> believe to be carbon tetrachloride. The impregnant completely
evaporated.
 >  >> The MSDS for a General Atomics (formerly Maxwell) I have says the
 >  > impregnant
 >  >> for my cap is isopropyl bi-phenyl, which should be a clear yellow
liquid
 >  >> with a "straw" like odor. It's not likely your caps are mineral oil
 >  > filled.
 >  >> Even with additives, they'd be pretty smell free. I've been to several
HV
 >  >> cap factories. All they smell like is paper. I've smashed open
silicone
 >  >> impregnated caps, again, no smell, but it's obvious they are filled
with
 >  >> silicone from how fast the oily mess flows over the entire surface of
the
 >  >> cap. The stuff literally flows out of any cracks or leaks and makes an
 >  > oily
 >  >> mess anywhere it can flow (up down, no difference).
 >  >>
 >  >> Give General Atomics a call with the partn number. Say you have a leak
and
 >  >> want the MSDS for the clean up.
 >  >>
 >  >> KEN
 >  >>
 >  >>
 >  >>
 >  >
 >  >
 >
 >