Salt for 3D printing uses salt harvested from the San Francisco Bay. The salt is harvested from 109-year-old salt crystallization ponds in Redwood City. These ponds are the final stop in a five-year salt-making process that involves moving bay water through a series of evaporation ponds. In these ponds the highly saline water completes evaporation, leaving 8-12 inches of solid crystallized salt that is then harvested for industrial use. The material is strong, waterproof and translucent.

Material development team: Ronald Rael, Kent Wilson and Mark Kelly