RE: foam glue and options
I use RC56 Canopy glue on all of my EPP and depron foamies. I have used everything from Welders to epoxy to hot glue. I use it to glue plastic hinges into depron and EPP. I don't use CA hinges anymore on my smaller planes because the ca hinge becomes too stiff for such small applications. I either use pinned hinges or clear tape.
Kurt