[lumberjim]

I have that stuff. Or something like it. Thing about that stuff is the edges. You need to keep it all from sliding off somehow. You could do very thin coats and build it up, or I was thinking of carving 1/2" deep reliefs in the areas where there are no cavities and filling them with epoxy resin. Heavy though. I might do like Digr said. Still mulling it over.