August 18th, 2018 I coated all the supports with epoxy. Coated the undersides and edges of all the floor panels. Then layed out thickened epoxy on all the supports and laid the panels down and weighted them in place. Got a farting sound from a corner of each bay when walking around on it. Seems it is sealed well and filleting in the sides will ensure that even more. That also means there is a slight flex but a layer of glass I lay over should help with that as well. Only 55f today, was hoping the sun would come out and bake it, but might be a day or two till I pull up the weights and sand the stuff squirted out between panels and lay in the fillets.