[TCML] Lacquer

[DC Cox]

Polyurethane works, but it may crack.  I use 1-2 coats of Dolph's AC-43,
especially formulated for HV work, and then a thick coat of Envirotex
epoxy.  1 qt. is usually enough for most coils --- it gives them a
glass-like finish almost 3/8 to 1/2 inch deep.  This technique pioneered by
Steve Ward and Jeff Larson.  It was on the two coils they brought to our
Teslathon.  Very beautiful finish.

Orange shellac may also be used.  Without Envirotex, 5-6 coats sre required.

Dr. Resonance




On Wed, Apr 7, 2010 at 12:43 PM, Thomas Schmit <Thomas.Schmit at cern.ch>wrote:

> What do you folks use for the lacquer on the secondary coil? There are
> special lacquers available at motor winding shops, etc that are rated at
> something like 2000 volts per mil. They are a little bit pricey and was
> hoping for an easier solution - i.e. something from Lowes, Home Depot or
> other "big box" store.
>
> Any advice?
>
> Thanks,
>
> Tom
>
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