Edison Conner, a former SpaceX rocket scientist and co-founder of Varial Surf Technology, tried for years to create a durable surfboard from aerospace material. In his eyes, the surfboard industry was ripe for disruption. Makers had clung to one manufacturing method for more than 50 years. For strength and flexibility, they created a spine from a strand of wood (known as a stringer) and glued it into a polyurethane foam cast. The cast was sanded and wrapped in fiberglass and resin.