All these responses are correct. Plus, bear in mind that Gorilla Glue is just a trade name for polyurethane glue which is also made by other reliable companies such as Elmer's and some have a much faster cure rate than Gorilla Glue at half the price with no noticeable difference in results. I guess Gorilla Glue was probably first on the market and has become the "aspirin" or "Kleenex" of polyurethane glues.