Hi, Just wandering if any of you people are using shellac as a sealer under varnish (interior of canoe)on restorations and what your experiences have been since getting the canoe wet. I'm a little paranoid of getting cloudy stains under all my hard work. I have heard lots of people mention Zinsser sealcoat. I have also heard of cutting the shellac with lacquer thinner. Anyone done this? Any help would be greatly appreciated. Thanks in advance.