> Have any of you heard of a product
> called Herculite? It comes in several weights. If we can ever keep Brian T
> well enough, we shall finish his rainfly of Herc 80. Herc 10 would be
fine.
> It is waterPROOF. it does not shrink,fade,mold or mildew.
so which product would you use if one were to make  a poptop
http://www.herculite.com/industrial_fabrics.htm

Herculite 20, Herculite 80 other ?
and would it be 10 or 18 oz ?