: At some point in the future I am probably going to be building a
: "Yostlike" wood frame kayak. I am planning on using a ballistic
: nylon skin coated with 2-part urethane. What I was wondering was if I can
: paint the outside of the skin after sealing with the urethane?

Only if your paint is as flexible as your nylon and coating and as long as it adheres to the PU.

What type of PU?

You'd probably be better off just using an opaque coating in the first place. Coelan Marine Coating is a one-part that flexes, sticks, and can be either clear or opaque.

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