I tried to put this question into the Smaller Boat forum earlier, but couldn't find it except in archive; thanks Jeff for your response. Anyway, my 1974 C22 has a fine crack across the sole of the cockpit. Its been there for years as a cosmetic crack. But this fall after hosing it down for storage, I found that there was water between the gelcoat and the plywood base. Its now in storage and should be well dried out by springtime. What can I do then to seal the crack and still leave the floor looking presentable?