Just had a kayak finished with 2 - part automotive clearcoat. Came out looking and feeling like a mirror! My approach was to avoid the mess, hazzards, and equipment. I just took the sanded kayak 3 miles down the road to a local auto and marine shop and had them spray it. They have all of the equipment, fancy spray booths and know how to use the product. Cost me $200. No way can I put on 5 coats of Captain's or Flagship, sand between the coats, worry about the dust, etc. for that amount of $$. If it needs refinishing down the line, I will just sand it and take it back.

Product used was PPG Stratoclear. I can take a boat in in the morning and pick it up in the afternoon. Paddle it the next day. The finish is a bit lighter than the amber tone of the varnish, but the wood shows off better. You might want to try this. One note. This kind of finish will show ALL of your minor, previously unnoticeable surface flaws.

Grant