Gorilla glue is a very heavy viscous polyetheline glue. theera re several on the market, from LePage and ProBond as well. We use it for the coroplast comat RC planes as they'll fly right through a balsa plane, generally without damage and keep right on truckin'.
; the glues are all similar, in that you need either a vry humid atmospheric conditions for it to 'cure' or wet one or both items prior to joining. You have to clamp the articles together and any ooze from the sides, top of bottom will bubble up into hardening foam. The glue does it's job of wetting and creating tension/filling any and all voids due ot it's expansive nature as it it cures.
: Water helps "Kick" the glue into curing more quickly. The lower the humidity or dryer the connection, the less foaming, longer curing time right to not curing in very dry locations for weeks, it seems. Over the past few years, I've used 3 large bottles of Gorrila glue and 4 or more of the ProBond and LePage makes. They're all about even. I've also used the gorrila glue for bonding the laminates in a longbow made of maple with an 1/8" maple 'back'. Using two laminates, the belly and back allowed stressing the tips into a reflexshape when curing by back-bending & clamping the wood. This slight reflex increased the bow's strength from what would have ben a 50#er to 60#draw at 28".(for those wanting to make their own flat-bow)
; These glues are very strong, however gorrila glue isn't "The World's Strongest" - just another advertizing lie.