The manufacturing process is apparently big secret, maybe rtm but you would still need some sandpaper to get rid of the parting lines.
They claim:
-No sandpaper.
-No paint brushes.
-No tape.
-No solvents except water.
Anyway the materials are quite cutting edge.
-ORGANIC BASALT HONEYCOMB TECHNOLOGY
-
Instead of toxic industry-standard polyester or old-fashioned epoxy, we use a new chemistry that has higher elongation, extreme ding resistance, and responsive rebound.
http://www.libtechwaterboarding.com/waterboards/
