Hi There, I just took my recently restored 16-foot wood-canvas canoe on its first trip. We had a lot of rain and a lot of in and out of the canoe on creeks and at portages. On the fourth day I noticed the beginnings of a few paint blisters on the hull. Each day more blisters were observed, and on the drive home (in a huge rain storm) more blemishes appeared yet again. The canoe is now drying and recuperating in my basement (boathouse). Some details: I used Northwoods Canoe Co. filler and let it cure for 10 weeks at 60 degrees F. I used Rustoleum topside marine enamel for three base coats of paint and finished with two coats of Epiphanes topside enamel. Painting began in February and took me about a month to complete, so the finish has had a bit of time to season. Based on my research on this site and others I imagine the problem was caused by: (a) improperly cured filler (seems hard to believe with 2++ months of drying time) (b) incompatibility of the Rustoleum and Epiphanes finishes (c) excessive water inside the canoe causing the finish to pucker In any case, I'm pretty bummed out after working so hard to achieve a decent finish. Any tips on what I should do next? Wait and see if the blisters disappear? Strip and repaint? Thanks in advance.