The problem I had with unibond 800 is it seems to go bad quicker then most epoxy I had a can that set for about a year never opened and when I did it was bad I later learned you can store it in the fridge to make it last longer , the last 3 bows I have done I used smooth on EA-40 it's bullet prof epoxy , using epoxys it's exstreamly important to have good even clamping pressure other wise you could have weak spots in the glue up gaps,etc. or to much pressure and a starved joint, I have friends that use the rubber band method that swear by it , I have only used presure strip clamp method & currently using the fire hose method , smooth on can be room temp cured or baked it's great reliable epoxy !