It should say on the bottle but, to be perfectly honest with you I dont know lol. When I started it was pretty much elmers or super glue, but as the 405th has expanded so have the choices and complexities. People have chosen to add 3 or 4 steps to do something because they dont like the smell of fiberglass resin, or strayed from card stock because they feel that they work better with cardboard,. etc, etc, etc. Everyone has their opinion as to what is going to work best for you. As for me I have to work on a budget, so the cheaper the better. I know that really doesnt answer your question, but its all I can tell you. I know what works for me, I dont know why it works, I just know it does. Good luck, if you have any other question feel free to ask and Ill try to answer better than this.