The floor was pieced together using some 12" plywood that I had sealed with the Suprasec. I used stainless screws, but forgot about my plan to cover them in 5200 before screwing the floor pieces together. I'm not too stressed. This floor will probably outlast my use of the boat anyway.
Used the 3M 80 vinyl adhesive after a successful test on the small nose piece. I ended up using 4 full cans.Thanks for the advice. Much appreciated.
To be perfectly honest, I'm not thrilled with the way it turned out. I got the garage up to 70 degrees, but probably should have let the vinyl warm up a lot more before gluing it down. There are definitely places where, despite rolling over it with a seam smoother for several minutes at a time, it just wouldn't stay stuck. There are places here and there where, when the light hits it right, you can tell it's not perfectly smooth. Gladly most of those spots will be covered with benches or decks. Still, I'm pretty disappointed I didn't do it right.
Some buddies are coming over to help me lift the whole floor into the boat next weekend.
The plan is to screw it down and get it to my metal guy by Sunday. I found wood-metal self tapping screws from Teks that are supposed to be pretty good. Has anyone used them?
Can I get away with just using regular stainless self-tapping screws? The last guy used them, I think, along with something I'm calling "grommets" (because I don't know what they're really called). Little donut-shaped rings that the screw head rests on? Anyway, can I use stainless with the grommets?
Also, should I sink a few in the middle aluminum that stretches down the keel, or just sink them in the ends of the ribs?
Thanks again, everyone!