Glad it worked
On sealing it, you can't keep the crap out, especially when you use reverse
So only seal the vertical sides and top on the front facing the tire
Leave the bottem rear wide open so it dries quickly and road bumps shake some of the crap out
With the crap, and no salt, they should last another 20 years+
Once a year? bang on them with a 2 pound hammer to break the crap loose so it will shake out
Got GA clay? cut a 1" hole in the bottem rear so you can put a piece of hose on a pressure washer and blast it out
If you ever do another torque box install, spray the sh## out of it inside and out and the toe board with Duplicolor bedliner spray($7 Walmart/auto parts store,).
Also excellent for your new floors, sand with 80 grit and spray, tough as nails and absolutely water proof and if it ever does get scratched you just clean it and re-spray, it re-wets itself and bonds to the first layer.
Great product! try a can
Last thought, do seal the sh## out of the inside left where the toe board/torque box and floor and unibody all come together, "pack it" with caulk