Have you tried a tent and awning store yet? At my local store, Tacoma Tent and Awning, they had both #10 canvas and 9 ounce polyester in an incredibly tight weave. I believe the polyester is a superior cloth compared to Dyson's 9 ounce polyester. The stuff I used is a tighter weave that does not fray, resists puncturing and tearing better, and should seal with fewer coats. The skin has held up better than the frame.

Mike

: My plan for a hybrid has been defeated- i was looking for a fast-build since
: I move so much, now I find I will be in four or five different places in
: the next 6 or 7 months. But everywhere I am going has places to paddle
: that aren't frozen (glad to go to dixie!) and I have to have something to
: do it in, so I have decided to go with a baidarka at bout 16 or 17 feet,
: whichever it turns out. The woodwork is designed already, I start that
: tomorrow, but I have multiple questions about cloth. I prefer synthetics
: wherever possible, and had thought back to m airplane-buiding days and
: using ceconite or shrinkable dacron. The heaviest I can find is 3.7
: ounces, fine for a bird but I shudder to put it on a kayak. Anyone know of
: some good sources?