I'm going to mod my 1436 jon boat and i have used foam but just put it under the removable plywood floor and never actually glued it down.I can't seem to find a good glue to glue 2 pieces at a time,they are 3/4foam board from home depot.Every glue seems to eat it.I found some liquid nails foam glue but it said it wasn't waterproof so i canned that.Any help on this at all?