The American Petroleum Institute - Today's surfboards start with foam blanks made of polyurethane, made from oil, which are produced from monomers, prepolymers and stabilizers. These blanks then are machine- or hand-molded
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GROM | ProGROM | Twinsbros Surfboards | Made in Italy
Surfboard Made From Leaves? 'Greenhouse' Targets Sustainable Alternative to PU Foam | GearJunkie