These are the most traditional and common blanks available in the world. Polyurethane blanks were the type of foam Clark Foam manufactured before they went out of business. Here you will find all sizes and shapes of Surfboard blanks made from Polyurethane foam manufactured by Arctic Foam and Millennium Foam.
All of the polyurethane blanks are molded to a crude form of a surfboard and need some shaping.
Polyurethane ARCTC Foam 7'3'' SBF - Blank for shortboard or single shaping - 1/8'' basswood stringer