Re: [TCML] I think I ruined my 6" secondary.

["David Rieben" <drieben@xxxxxxxxxxx>]

Hi Scot,

So you're saying that the Behr's 50 will eventually
deteriorate over time? I think that's the first negative
trait that I've heard mentioned about this stuff. Well, 
like I said, it takes a bunch thin coats of the Minwax 
Marine Spar Varnish to build up a shell of decent 
thickness but I agree with Bart Anderson that this is 
one of the best commonly availabe products for the 
secondary coil coating. My Spar Varnish coatings
have always lasted for years w/out significant dete-
rioration in my unclimate controlled shop. I had 
thought that the Behr 50 epoxy would be great but 
your comments about its lack of long term durability 
have got me questioning its suitability now....

David Rieben




----- Original Message ----- 
From: "bunnykiller" <bunnikillr@xxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Thursday, July 03, 2008 7:05 AM
Subject: Re: [TCML] I think I ruined my 6" secondary.


> Hey David..
>
> The pour on stuff I used was Behr 50, a 2 component material. It was 
> very nice to use, thick like an epoxy ( I believe it was an epoxy) once 
> dried it was somewhat resiliant, but after a few years it becomes very 
> brittle and when you bump the coil, the wires seperate from the coating, 
> leaving large "air gaps" between the wire and coating.  I do have to 
> admit tho, the exterior finish has held up to years of abuse with 
> minimal scuffing ( still shiney) and one more thing, the Behr 50 is 
> quite prone to the effects of holding a charge on the coil ( very strong 
> zapping capacity :)  on my 12"X5' secondary it was like being hit by a 
> Taser, couldnt move my leg properly for a couple of minutes after the 
> main shock).
>
> Scot D
>
>
> David Rieben wrote:
>
> > Hi Phil,
> >
> > Can you tell us what the name of this stuff is? I have heard
> > of Berh's "pour-on" but have never been able to find a pro-
> > duct by that particular name in my local building supply stores.
> > (Plenty of Berh's paint products, but no Pour-On).
> > I have been using the Minwax Marine Spar Varnish on my
> > coils for the last several years now with good success but
> > of course it has to be applied via multiple thin coats to get
> > a reasonably thick coating.
>
> snipperz
>
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