Re: Mutant Tar!!

• To: tesla-at-pupman-dot-com
• Subject: Re: Mutant Tar!!
• From: "John Williams" <jwilliams-at-edm-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Tue, 25 Apr 2000 08:04:19 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Brad,
	Are you sure it is tar?

	This may turn out to be of use to some of you if not to Brad.
Casting resin, and probably a lot of potting resins, will absorb acetone.
It doesn't soften and liquify.  It expands, fractures and flakes off.  You
have to leave the piece in the stuff in a sealed container for a very long
time, weeks or months, but I've seen it work.

	John


>Original Poster: "Brad DiGiovine" <Guido28-at-mediaone-dot-net>
>
>to all,
>
>i have had a NST sitting in gasoline for the past month unpotting and it
>is still not all off.  I can barely see the windings.  Has anyone else
>ever run into this?  my 12kv30ma NST only took a week, and this 15kv30ma
>is taking a lot longer.  Are there better solvents for unpotting than
>gasoline? thanks
>
>Brad DiGiovine

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