RE: secondary coil (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Fri, 5 Oct 2007 00:20:24 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: RE: secondary coil (fwd)


Gary,
     It should very well be fine to use water based polyurethane, as long
as it completely dries before the coil is run.  I guess the concern would
be getting it "completely dry", even microscopic water pockets would
probably conduct TC high voltages.  Perhaps somebody out there would be
willing to do a test, after all, if it can be dried well enough, all that
will be left is non-conductive plastic, just like regular oil base
polyurethane.  If the test fails, there are still lots of other options
for us.  I've read about people using their own chemical concoctions, with
a variety of things such as lacquer and shellac involved.  And there is
always epoxy as well. Scott Bogard.

> Date: Thu, 4 Oct 2007 16:47:59 -0600
> From: tesla@xxxxxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: RE: secondary coil (fwd)
> 
> 
> ---------- Forwarded message ----------
> Date: Thu, 4 Oct 2007 17:42:47 +0000
> From: "Lau, Gary" <Gary.Lau@xxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: RE: secondary coil (fwd)
> 
> I too have always used just oil-based polyurethane to coat my secondaries.  
> But the last time I went to Home Depot (the big US hardware/home
> improvement chain) to buy some, the clerk told me that the oil-based
> variety won't be around much longer, being replaced with the water-based
> flavor.
> 
> Has anyone actually tried coating a coil with water-based polyurethane?  
> On the surface it sounds undesirable, but you know what happens when you
> assume.  I don't know - it may be fine and a lot less stinky and toxic.
> 
> Regards, Gary Lau
> MA, USA
> 
> > From: Ben Buxton <bb@xxxxxxxxxx>
> > To: Tesla list <tesla@xxxxxxxxxx>, mattcook89@xxxxxxxxxxx
> > Subject: Re: secondary coil (fwd)
> >
> >
> > Pretty much any oil based clear polyeurethane will do the trick, any
> > hardware store will have it.
> >
> > Whatever you do, don't use a water based coating. Check the tin, the one
> > you want will mention using turps to thin/clean.
> 
> 
> 

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