Skiprat, casting is the wrong term; I just want to wet out some paper thin stuff just enough resin to keep it from falling apart. The whole thing would later be finished over with a different finishing method. Think in terms of newspaper strips (or feathers, or whatever) all coated so that they are a strong and pliable sheet. The sheet could then be cut to size, put in place in oddly shaped cutouts, then covered over with polyester or acrylic in areas that would be tough to do by a normal casting in place method.