On Wed, 25 Apr 2012 23:01:32 -0400, Wayne.B
wrote:

Mylar comes in different thicknesses. The kind I'm thinking of is
probably comparable to crispy new (and relatively heavy) Strataglass.
It needs to be heavy enough that it is relatively self fairing as you
wrap it around the shaft. You can wrap multiple layers of course for
extra body.

Thinking about it, thick is not good unless it's cut to perfectly butt
the edges, which would be difficult. Otherwise, the epoxy will make a
shaft increasing in diameter to a raised "cliff-face" where the mylar
wraps over itself. The thicker the material, the longer the incline
portion.

Wish I could draw a picture, but let's say the wrap is 1/4" thick (I
know, that's ridiculous, but..). Wrap it around a shaft and look at
the end. You'll see a curving right triangle with the base 1/4".

Rick