I have never used it but have heard that commercial liquid hide glue doesn't work well for sinewing bows, something about the additives.
Go to Walamart in the baking, flour section and buy a box of unflavored Knox gelatin which is highly refined hide glue in powder form. It comes in a bunch of individual packs, one box would be be enough glue to sinew 5 or 6 bows. Mix a few packets with warm water until you get a light syrup consistency and you are ready to sinew.
