The above answers hit the nail on the head. My addition is, the epoxy, or whatever, is only attached to your hull by whatever grip the paint supplies. When the paint comes loose you'll lose the resin coating as well.

: i just finished building my first kayak, plywood construction. and
: i was planning on fiber glassing the hull but i painted it
: first. i learned later this was wrong . so i decided to just go
: ahead put a coat of resin over it. two weeks later its still
: tacky will it ever dry or is it doomed. im sure the best way to
: fix it would be to strip it down to bare wood and then glass it.
: but the paint job is so beautiful. it looks like an old pirate
: ship. ive learned alot about what not to do since i started this
: project and if anyone could give me some advice about fixing my
: mistakes i would really appreciate it.