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Re: spray enamel vs shellack

Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

On 7 May 2005, at 12:55, Tesla list wrote:

> Original poster: "Paul B. Brodie" <pbbrodie@xxxxxxxxxxxxx>
>
> Dr. Resonance,
> Dolph's AC-43C costs a small fortune and on top of that, I haven't
> been able to find an outlet and several emails to the company, using
> their email address posted on their site, go unanswered. I suppose
> what Steven and I are looking for are the dielectric and electrical
> properties of clear enamel, since we can't afford much else. Thanks.
> Paul Think Positive

A simple solution I use is to pay a yearly visit to a local motor
winder and get a couple of treacle tins filled with air-drying
electrical varnish for $10. I wind lots of transformers during a year
so need a ready supply on hand.

Malcolm


> ----- Original Message -----
> From: "Tesla list" <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx>
> To: <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx>
> Sent: Saturday, May 07, 2005 12:41 PM
> Subject: Re: spray enamel vs shellack
>
> > Original poster: "Dr. Resonance"
> <<mailto:resonance@xxxxxxxxxx>resonance@xxxxxxxxxx>
> >
> >
> > Unless you know the dielectric and electrical properties of clear
> enamel you > should avoid it. > > Dolph's AC-43C (check their
> website) is a great finish for magnet wire > coils. Excellent
> dielectric properties as it's specially manufactured for > the
> industrial xmfr winders. It's available as a brush on or spray. We
> use > 4-5 coats of the brush on type in very thin coats on magnet
> wire coils. > > It cements the windings together and prevents dings
> to the magnet wire > finish. It is also very shiny in appearance and
> the coils look great after > application. Allow each coat to dry 24
> hrs. Usually, turning for only 30 > min. is required on each coat. >
> > Dr. Resonance > > > > True shellac doesn't have the durability of
> modern polyurethane and other > > coatings.Alcohol vapour can make it
> craze, and it is also very brittle.I > > only use it for restoration
> of old apparatus for the sake of authenticity. > > ----- Original
> Message ----- > > From: "Tesla list"
> <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx> > > To:
> <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx> > > Sent: Friday, May 06,
> 2005 12:30 AM > > Subject: spray enamel vs shellack > > > > > > >
> Original poster: "Steven Steele"
> <<mailto:sbsteele@xxxxxxxxxxxxx>sbsteele@xxxxxxxxxxxxx>
> > > >
> > > > Would spray enamel be a suitable replacement for shellack to
> coat the > > > secondary if my Tesla Col? > > > > > > Steven
> Steele > > > > > > > > > > > > > > > > >
>
>
>