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Re: Behr 50

Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>


Don't use Behr 50  --- it cracks with temp changes and sometimes does not
dry properly especially in states with high humidities.

Use an enamel especially developed for coating xmfr wires --- Dolph's AC-43.
Do a websearch and Dolph's will pop up.  It seals well, doesn't crack, and
holds magnet wire in place.  You can buy it in quart sizes if you're on a
budget.  It air dries overnight.  We usually apply 4-5 coats per coil over a
5 day period.  It can also be applied to the coilform as a sealant prior to
winding.  Use 2 coats for best over lapping coverage.

Dr. Resonance

.>
> I've never had personal experience with the Behr 50 "Pour On"
> as I can't find it in my here in the Memphis, TN area. I have
> heard how easily it can be applied in a very thick coat with a
> single application. I have had good success with no cracking
> or crazing from temperature extremes with the Minwax Indoor/
> Outdoor Helmsman Spar Urethane. It is only a little more costly
> than the plain polyurethane and applies just like it, requiring
> multiple coats for a good thick coating. My garage does
> stay somewhat warmer than the outside temps on cold winter
> nights but does still get quite chilly. OTH, sub-zero temps are
> almost unheard of in this part of the country, so I guess I can't
> personally vouch for the verility of the spar urethane in REALLY
> cold temperatures.
>
> David Rieben
>
>
> ----- Original Message -----
> From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Thursday, November 25, 2004 8:15 PM
> Subject: Re: Behr 50
>
>
>  > Original poster: "Chip Atkinson" <chip@xxxxxxxxxx>
>  >
>  > I once coated a coil with a really thick layer.  The coil was copper
wire
>  > on an acrylic form.  The behr 50 broke all up during a cold snap in the
>  > garage.  It was probably around 0 F in the garage, so I suggest you
keep
>  > your coil in the house during the winter.
>  >
>  > Chip
>  >
>  > On Wed, 24 Nov 2004, Tesla list wrote:
>  >
>  >  > Original poster: "Christopher" <cpfortun@xxxxxxxxxx>
>  >  >
>  >  >
>  >  > I was wondering if anyone might know what temperatures Behr 50 will
>  >  > withstand before cracking or being affected in any way, shape, or
form
> ?
>  >  >
>  >  >
>
>
>