Well, this idea sprang from the fact that you can use sticky resin to make sticky pistons. Pistons are the ideal choice for making secured doors, but only if you don't mind the doors being 2x2 without serious redstone setup. What if, then, you could use sticky resin (or perhaps refine it somehow) as a binding agent to keep blocks stuck together? I don't know if this has already been suggested, but to my knowledge, it hasn't yet.
It would certainly stack with RP2's frames, as by gluing blocks together, you can make a fully-sealed blast door with this glue and Reinforced Stone.
Anyway, what do you guys think?