Coating the secondary

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

Original poster: "Vince D'Amore by way of Terry Fritz <twftesla-at-qwest-dot-net>" <vincedamore-at-earthlink-dot-net>

Hello People
 
 I know some of you have varnished or coated your secondary with a pour on
urethane or
some sort of sealer. Can someone tell me if this improves performance or is
this just to 
protect and hold the wires in place? 
 I have a coil already wound and would like to know if I should coat it or
leave it as is. 
If I coat it what product is the best?
 
 
 
Vince