Using some plywood panel (acx) for part of my build. I have some butt joints that will use angle alum for main support. The panels will be primed seperatly, prior to assembly with spar urathane. Should I use a glue on the joint as well? If so, what type would be best given the spar urathane? Polyurathane glue? When I used that before for indoor projects, had to slightly dampen the wood to get a good bite. With the spar urathane, would it hold?