I was wandering whats the best way to fasten styrofoam to plywood. And the strofoam will most likely be the kind used in packaging of funiture, the white kind. The reason for this type of foam, is I was alowed to get some for packing a item, out of a dumpster, used buy the rent a center folk. Free they said all I need, Hmmm So this is what I'll be useing. Do the liquid nail, brand work, or they make it specialy for foam? And how should I go about fastening track to stro foam, if I make my road bead/track bead I mean, out of foam.