SUP board
For materials, I used EPS200 insulation boards with 12 mm waterproof plywood in the middle for reinforcement. I glued the boards with epoxy and shaped the insulation board preform with a saw, rasp and sandpaper. Next, I fiber-glassed the preform with woven 160g/m2 mat and epoxy and then painted the board. Finally, I applied black RUBBERcomp rubber coating on top of the board for anti-slipping.