: 2) Spirit Line 2 part polyurethane (Corey Goop) Reasonably durable, very
: flexible, reliable IF YOU MIX THE RIGHT AMOUNTS AND MIX WELL. But, it's
: shiny.

I think that goop is flexible, but it doesn't have the elasticity of coelan, and that's the difference. At least in the things I've used. If you spread out a blob of each on a piece of wax paper and pulled them up when they were cured, the goop would flex, but not stretch, and the coelan would be just as flexible, and if you grabbed the edges and pulled it would stretch.

Also- a product like Epifanes monourethane topsides paint is a good choice for canvas or polyester, but some people use it for nylon too with good results. Ralph Johnson posted something about it on the Qajaq USA forum a while ago.

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