Coil Form Sealing?
From: Alfred A. Skrocki [SMTP:alfred.skrocki-at-cybernetworking-dot-com]
Sent: Monday, April 20, 1998 6:39 AM
To: Tesla List
Subject: Re: Coil Form Sealing?
On Saturday, April 18, 1998 11:26 PM D.C. Cox
> Avoid the polyurethane -- will crack with time and becomes unsightly.
I differ on this. I have several coils that I wound over 20 years aga and
coated with polyurethane and they are as good and as nice looking as the
day they were dried! The alternatives you mentioned; G.E. Glyptal and
Dolph's AC-43 air dry varnish, are needlessly expensive when compared to
either polyethylene, Shellac or Varnish, all of which work quite well.
BTW there may be differences in polyurethane finishes, I used Zar brand,
clear glossy, oil based.
\\ ~ ~ //
( -at- -at- )
Alfred A. Skrocki
Visit my Do-It-Yourself Aquarium WEB page at;
-----( )---( )-----
\ ( ) /