I'm sure ya'll have seen flowers in a clear vase and at first glance the flowers appear to be sitting in water, but then on closer inspection you realize the flowers are fake and what appears to be water is a hard crystal clear acrylic substance. I bet that stuff would make a pretty good fingerboard coating. Seems as though you can buy it at most craft stores. http://www.crfolks.org/items/Aristocrat_Liquid_Illusion_Flower_Resin_Kit_6344128.html I'm thinking you could make a dam out of tape around the edges of the fingerboard and pour a litte bit of this in there. This stuff appears to dry without bubbles, which I like. I see two drawbacks though. One, this stuff looks pretty liquidy and if you use too much you would end up with a flat fingerboard that would have to be radiused again...unless you want a flat fingerboard. Two, if it is liquidy and you had a radiused fingerboard the stuff would run away from the center and a heavier buildup would happen at the edges. Any thoughts on this stuff or how to get an even coating on a radiused fingerboard?