Re: [TCML] Envirotex Lite , High Torque drive

[quarkster@xxxxxxx]

Wyatt -
 
Hard so say without actual testing.
 
The Envorotex Lite epoxy resin has bonded well to all the different types of magnet wire that I have used. However, there are many different types of insulation used on magnet wire, and I don't know the specific insulation type for all the coils that I have coated. I would be suspect of magnet wire insulations based on Nylon (like Nyleze)., which is notorously difficult to bond to.
 
I have always been careful to wipe down the surface of the coil with isopropyl alchhol and a clean cloth just prior to coating to remove oily fingerprints, etc.that might adversely affect bonding.
 
Steve Ward recently (7-27) posted a message about a secondary of his that was initially coated with polyurethane varnish, then overcoated with Envirotex Lite. 
 
However, I doubt that Steve would be willing to bang on the coil with a plastic mallet to check adhesion between the epoxy and the underlying varnish.
 
I think that if you carefully clean the coil before applying the epoxy, you will get adequate adhesion.
 
Regards,
Herr Zapp
 

--- On Wed, 7/29/09, nancylavoie@xxxxxxxxxxx <nancylavoie@xxxxxxxxxxx> wrote:


From: nancylavoie@xxxxxxxxxxx <nancylavoie@xxxxxxxxxxx>
Subject: Re: [TCML] Envirotex Lite , High Torque drive
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Date: Wednesday, July 29, 2009, 1:37 PM
, 

Could this product be used on an already polyurethaned secondary or would you expect compatability issues? Thanks. Wyatt
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