Bing Surfboards. Lost Enterprises: Latest News: Surfboard Glossary. Article | posted on January 20, 2011 Although experimenting with materials is growing in popularity, the polyurethane blank is still the preferred canvas for most shapers. Photo: Van Swae Blank Rough molded foam core that comes in different basic designs and rockers depending on the length and type of surfboard being shaped. 2011 Surfboard Buyers Guide.