Re: Hard coating for foam toroid

["Barton B. Anderson" <tesla123-at-xxxxxxxxxxx> (by way of Terry Fritz <twftesla-at-xxxxxxxxxx>)]

Hi Michael, 

Tesla list wrote: 
>
> Original poster: "acmnovak" <acmnovak-at-email.msn-dot-com> 
>
> BIG SNIP>
> The filler material can be any of several different things; 
> styrofoam (as you pointed out), LDPE, cardboard, wood, or even cotton.

On this particular point, it seems to me those small styrofoam balls which are
used to fill bean-bags would be the perfect filler for your al-duct toroid. You
could probably find an old bean-bag at a garage sell for this purpose. Faster
and cleaner than foam and will fill all the nooks-n-crannys. 

Just a thought, 
Bart