I have been using different versions of this type of product for many years. This is a urethane based adhesive. There are several of them available on the market today, and this is the best known of the bunch. That doesn't mean it is any better than the others, but certainly not any worse either. When you make this purchase you are faced with the question of how large of a bottle to purchase. I would recommend that you think carefully about this. For most wood applications, it doesn't take a lot of this glue to do the job. Here is an example... I had to completely refit and glue up a set of eight (8) dining room chairs. All of the original glue joints were working loose. The original glue used was one of the standard white or yellow "carpenter's" glues. They worked well for more than ten years, but eventually failed due to rocking motions and sliding them across the floor. I completely refit and glued up all eight of those chairs with this one 4 ounce bottle. So, only choose the larger bottles if you have large projects or you are "sloppy" or "over generous" with your application rates (Incidentally...more is NOT better..!!).