If you are only unhappy with the surface texture of the paint you might investigate polishing it. Try contacting Meguair's

: http://www.meguiars.com/

: Hi,

: I built a nice stitch and glue kayak a while back and was talked into
: finishing it with a water-based crosslinked marine polyurethane clear
: finish. It is tough, but lacks sheen and has a whitish haze to it. Also
: does not self-level well, so brush marks (even from foam brush) abound. I
: compare it to my more recent boat that I finished with spar varnish, and I
: am now intent of removing this finish and replacing it. I wondered what
: advice people may have for chemical strippers with respect to epoxy. Many
: strippers warn against contact with plastics. This polyurethane is too
: hard to sand all the way back.

: Regards,