As the trunk floor was the next item to be replaced, that seam was left open, and we removed 2 inches of trunk-floor metal from the framerail tops when the floorpan spot welds were removed. After the trunk floor was replaced, that seam was welded. POR15, a rust preventative, was brushed on the bare metal areas and a bead of Evercoat Maxim Self Leveling Seam Sealer was run along the seams. Make sure to install the drain-hole plugs correctly. They shouldn’t look like an upside-down top hat.