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RE: spray enamel vs shellack



Original poster: "david baehr" <dfb25@xxxxxxxxxxx>


I used to coat my coils, I didnt on the last two I wound , no problems so far . ;-)





>From: "Tesla list" <tesla@xxxxxxxxxx> >To: tesla@xxxxxxxxxx >Subject: RE: spray enamel vs shellack >Date: Fri, 06 May 2005 12:18:13 -0600 > >Original poster: "Mark Dunn" <mdunn@xxxxxxxxxxxx> > > >Steve: > >Most of the sprays must be recoated in 1 to 2 hours or you must wait >48 >to 72 hours. Otherwise, the surface will alligator. I leave my >coil >and coil form on my winding device and build up coats of minwax >polyurethane with a foam brush while rotating the winding device. I >can >apply an even coat like this in a matter of minutes. Then, I wrap >the >brush in aluminum foil and a zip-lock bag and put in the freezer. >The >polyurethane dries in 1 to 2 hours and I can recoat. I build-up 50 >or >more coats, but others on this list have indicated that is not >necessary. In my case, I use recycled wire so I have soldered >splice >joints that sometimes stick out a bit so part of my reasoning is to >build up thick enough to cover this. > >Mark > > >Would spray enamel be a suitable replacement for shellack to coat >the >secondary if my Tesla Col? > >Steven Steele > >