RE: Transco Rock Hard Resin

• To: tesla-at-pupman-dot-com
• Subject: RE: Transco Rock Hard Resin
• From: "Rick Richard" <ollopa-at-jps-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Wed, 26 Apr 2000 14:40:29 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

I've used acetone and a screwdriver to successfully remove that 
type of resin from a transco core.

After soaking for a day in the acetone, the resin becomes bloated
and a little bit can be peeled away with a screwdriver.  Then soak again
for a couple hours, and peel back a little more.  Eventually, you will be able
to chip off small and large chunks of the resin.  It's very easy to damage the
windings when taking off chunks at a time, but it WILL work if you are patient.

One other thing to note is that the case must be cut away prior to soaking.

I've got a couple pictures of this process.  

On 25-Apr-00 Tesla List wrote:
> Original Poster: "me" <weaver77-at-home-dot-com> 
> 
> 
> Over a years ago I had a Transco neon short out.  It is filled with
> something that looks like epoxy or polyester resin that is rock hard.
> It looked like it would be hopeless to try and unpot it so I pushed
> it up under the work bench.  Today I put it in a 75 Tons press at
> work and smashed it.  The first push made almost no damage and
> only a crack in the resin.  I rotated it 90 degrees and pushed again
> and it cracked one more time.  I rotated it 90 degrees each time and
> pushed again and it cracked 1 or 2 times on each push up to about
> the 15th push.  Then it started to break up.  The case finally smashed
> a little and the neon fell out.  All the resin fell off and I could see the
> laminations were bent and smashed beyond repair.   This is not a
> good plan, don't try it.  I trashed a neon that was already dead.
> 
> Gary Weaver

• Prev: A figure of merit
• Next: Re: Microwave Oven Transformers (MOTs)
• Index(es):
  • Main
  • Thread