I recently completed a skin-on-frame kayak using 8oz polyester fabric. If you are looking for heavier weights than the aircraft suppliers stock, George Dyson sells un-shrunk polyester fabric in a variety of weights and weaves. He doesn't have a website but if you send him an email at GDyson@...
he will send you a detailed description of 8 to 10 fabric choices that he has available.
--- In Airolite_Boats@yahoogroups.com, "Caruk, Gord" <gord.caruk@...> wrote:
> If anyone happens to find 6 oz Dacron, please let me (all of us!) know. I think that is all that I'm really accomplishing with the two layers anyway, and it would probably be easier to just do it all at one go.