RE: Best bug catcher ever!!!!!

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

Original poster: "Loudner, Godfrey by way of Terry Fritz <twftesla-at-qwest-dot-net>" <gloudner-at-SINTE.EDU>

Hi Gregory

Shortly after coating a completed 4" secondary coil with polyurethane, I
returned to find at least one hundred moths stuck in the finish. I had place
the coil by an open door to air out the fumes. I quickly washed the coil
with mineral oil using a brush. This got rid of most of the remains, but I
could still see pieces in the finish. Mineral oil thins but does not
dissolve polyurethane. I did not notice any affect upon the performance of
the coil. I must note that there were no large pieces remaining in the
finish. Since you have not wound the form yet, I would lightly sand out the
remains with a fine 220 grit sandpaper for piece of mind. 

It is worth investing in and taking proper care of one good brush. They are
expensive, but they don't leave behind bristles. I support my HV hobby by
repairing and refinishing furniture (especially hardwood tables). 

Godfrey Loudner     

> -----Original Message-----
> From:	Tesla list [SMTP:tesla-at-pupman-dot-com]
> Sent:	Thursday, April 11, 2002 1:03 PM
> To:	tesla-at-pupman-dot-com
> Subject:	Best bug catcher ever!!!!!
> 
> Original poster: "Mr Gregory Peters by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <s371034-at-student.uq.edu.au>
> 
> Hello all,
> 
> Today I was coating my new PVC 12" secondary with 2 part epoxy. For some
> wonderful reason, it seemed to attract more bugs than the fluorescent
> lights above me! These promptly landed on the coil and got stuck in the
> epoxy. Although I removed them as best I could, there are still some
> entrails, bits of exoskeleton, etc, set in the epoxy. In addition there
> are a few strange hairs from the brush (not complete bristles) set in
> the epoxy. I'm wondering if this could compromise the electrical
> strength of the coil. Most of them are totally covered. I would imagine
> that they won't cause problems as some plastic fibres and insect
> skeleton probably aren't any more conductive than a cardboard coil form.
> But I would like to hear from anyone whoose coil has failed because of
> this, before I go ahead and wind on the wire. I can also strongly
> reccommend using two part epoxy for coil coatings. It goes on easy and
> is probably tougher than any other coating out there. From my local
> hardware shop it is also competitively priced.
> 
> Cheers, 
> 
> Greg Peters
> Department of Earth Sciences,
> University of Queensland, Australia
> Phone: 0402 841 677
> http://www.geocities-dot-com/gregjpeters
> 
> 
> 
>