Time to close up the tank for good. This was by far the most messy job in building the tank. I placed a small amount of sealant on top of the flanges around the rivet holes and on the side of the baffle. Placed the baffle on top and clecoed every hole on the skin as per Van's instructions. I wasn't looking forward to cleaning all these cleco's after. So now the tank is finally done ready for pressure test when sealant has set.