Re: Secondary form coating.

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Gerry Reynolds" <gerryreynolds-at-earthlink-dot-net> 

Hi Scot and others,

I think I remember a post from last summer recommending a precoat on the
coil form of shelac.  The reason given, I believe,  was its tackiness in
helping keep the wire in place while winding.  Since I'm getting ready to
wind my large coil, is there any down side to using shelac.  The coil form
is acrylic and will be sanded first.  The final coats will be polyurethane.

Gerry R



 > Original poster: BunnyKiller <bunikllr-at-bellsouth-dot-net>
 >
 > due to the colorant I would guess no...   the colorant in many paint like
 > applications use metallic oxides which under hi volt applications
 > conduct...  as far as corona dope being either black or red....  what type
 > of colorant they use in that that doesnt conduct is probably a trade
 > secret...  most blacks are carbon  and reds are lead oxide...
 >
 > Scot D
 >