[TCML] Re: Inner tube toroid perished rubber

["Peter Terren" <pterren@xxxxxxxxxxxx>]

I have a 9x33 inch truck inner tube as the basis for my upper toroid on my 
18 inch coil. My first effort was with it providing the support for a 
chicken wire surround. After my first go it puctured full of many holes 
despite the wire covering.
http://tesladownunder.com/Tesla_coil_18inch.htm#Toroid
Since then I covered it with Aluminium adhesive backed tape it has worked 
fine in the last 6 months. Today on a hot day, however it blew with a split 
along a fine gap between two adjacent windings of tape where the rubber was 
bare. I could separate the spilt easily with my fingers and the rubber 
appears to be considerably weakened. It might have been a simple blowout as 
well but the hole was only tiny when I reinflated it initially.
Question. Is this due to sparking or ozone or adhesive effect? How do I get 
around it.  I hope to do a full autopsy soon to look at the strength of the 
fully covered area where only adhesive should be a factor.

Peter 
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