: Carbon cloth is good for stuff that has to be hard and solid, like
: for example paddles, but a SoF kayak really should be flexible.

: If you did make it with carbon you might be able to take the frame
: out afterwards with only a very minor loss of strength (see
: another thread from this week on this forum i think), but
: really.. it would be a waste to make a kayak with it I think :P

Single skin you won't be able to take the frame out and have it usable, will be way too weak. CF is not a cure all.

Other problem used alone it'll take a huge amount of resin to make it waterproof, the cloth not applied over a substrate of some kind is very porous and the resin won't fill the holes between the yarns, will take endless coats of resin to eliminate all the holes, each one adding weight and decreasing flexibility.

Bill H.