Hi all, thanks for all the advice in this awesome forum. I'm starting my foamie build. (I'll start a build post soon) I've got the trailer frame built, and the floor plywood all cut out, but haven't painted it with "the mix", and haven't started gluing anything to it. I live in a very wet area (PNW), and will be towing the trailer through lots of rain and wet snow, so I want the plywood floor to be super waterproof. The current floor is 5 sections that I plan on joining together with lap joints.
Here's what will be glued to the plywood floor: I will be gluing the lap joints on the plywood together with TB2, then gluing ( with TB2) and screwing wood rails to the top of the floor (to hold the bottom of the foam walls), Then gluing the foam walls to the plywood with Gorilla glue, and finally gluing the bottom edge of the outer canvas skin to the bottom of the plywood floor (when it wraps around from the foam wall) Also, some of the interior furniture might be secured to the floor with glue and screws.
I would like to waterproof the plywood before doing all that, as it seams much easier to get it completely sealed before it is all assembled, and I don't want water getting in anywhere. However, I'm concerned that the glue won't stick to the polyurethane surface on the plywood. I've looked through the forums (including this post), but couldn't get a clear answer. Any advice?
Thanks!