: Dean, if you're spending all that money for fancy kevlar cloth consider 4oz
: s-glass, it'll be lot's easier to apply and repair, I'm guessing the
: amount of resin to adequately wet-out the 5oz kevlar might wet-out a
: larger weight s-glass.

The original aforementioned-but-unacknowledged individual actually has a bit of new info on his site. I'd link you to it, but I don't want to get Nick in trouble. He gives the material cost for a variety of layups, and shows a $20 difference between the wood/glass kayak and the wood/glass/Kevlar kayak. Figure you're replacing a few layers of 4-oz. glass with a single layer of Kevlar, so if the Kevlar is ~ 3 times more expensive per yard, you're still even cost-wise.

Also, since the Kevlar is used only on the inside, epoxy is only needed to fill about 2/3 of the cloth, no fill coats, so the layup should be lighter (by 4# compared to glass as posted, assuming the author is not posting misinformation out of spite). Also, I'm not sure how much Kevlar should be used along the length of the hull -- I would imagine that running it out all the way to the ends is overkill. Maybe the stronger layup is only necessary in the 10'-12' of the middle of the boat, and a single, light layer of 4-oz. could take care of the ends.

Dean