I have a boat which has 1 5/8" thick pressure treated transom. I'm assuming since you cannot buy wood of this thickness it was multiple sheets laminated together. Since the transom sits half in the water I want to make sure I get the correct glue for the application. Any help would be appreciated.
From contributor B:
Epoxy or resorcinol is the only glue that is recommended for use "below the water line". There are numerous sealant/adhesive products that will also work but nothing better than real glue. Epoxy will work without heavy clamping. Start with "marine grade" plywood and just glue and screw it together (you can remove the screws after it's set). Also, seal the ends of the plywood with epoxy. You could also use the same epoxy for laying any fiberglass over the wood.