A quick question about POR15 and drip rail.

Lets be clear about something. (In my best Obama voice). "Encapsulation" is a made up, bullshit hyped up marketing word. There's nothing special about it. All it means is to encase something. When you prime and paint properly, you have just encapsulated what you painted. There's nothing any different the POR15 is doing that properly applied paint will not. If you believe that, then cat **** is the new miracle health food. I can hook you up.

And yes, as others have tried to tell you, use seam sealer.