In my mind, this can't be repaired. Coil must be kept rotating slowly until coating sets up, may take up to a full day.
It may look "unsightly" , but still should throw some sparks
> Date: Sun, 23 Feb 2014 15:59:26 -0800
> From: kubaanglin@xxxxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: [TCML] Secondary coil polyurethane coat problems.
>
> I recently made my secondary coil (6" x 3') and coated it with several
> layers of polyurethane. I made sure that no bumps formed when applying the
> coats. I started coating pretty late and had to store it for the night in
> my garage. I stored it horizontally. When I woke up, the still wet
> polyurethane had gathered on the bottom of the secondary coil forming a
> line of unsightly bumps across the length. I have some ideas of how I might
> fix this such as using sandpaper or steel wool, but thought I would ask
> first. What should I do?
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