You can make good hide glue yourself, from rawhide, or sinew. But, do it outside! If you do it indoors, it'll stink up your whole house... for days!! Your wife and/or family will kill you. When you think you've boiled it enough, boil it somemore. Boil it until it's a thick, syrupy, goo. Let it cool. and then reheat it over a double boiler to apply. I totally cheat, and use TB hide glue in the bottle. Hide glue also has a limited self life, no more than a few weeks. It's organic, and will rot. knox gelatin, from your grocery store, is the same thing, and I also use it.