This one depends on access to thicker sheets of closed-cell foam.
I bought some ultra-lightweight EVA (ethylvinylacetate) foam
for making boat seat cushions in the late 1980s
It was two pounds per cubic foot, which is about half the
density of the junk they sell in fly shops.
Once I saw how light it was I bought a bunch more
in various colors, for fly tying. They didn't have tan
at that time, so I ended up with white, gray, black,
yellow and orange. 2lbs per cubic foot foam is so light
you cannot sink it. You can hang a big, heavily weighted
nymph off the back end of one of these and it stiiiiiilllllllll
won't sink.

20 years later and the wholesalers still haven't figured this out.
The foam they sell is so dense it barely floats. That's because
dense foam costs more, so the salesmen make a bigger markup,
so they sell it to dummies who don't know better.

Punchline: I don't think you can buy this foam. The magic
of the market place is stuck in a mire.


http://montana-riverboats.com/Pages/...per/index.html

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/* Sandy Pittendrigh --O0
** http://montana-riverboats.com
*/