I had never used molding compound until I decided to purchase some, try it out and decide if it was an item others might be looking for, wanting to try, or just an artistic adventure... Since I sell it in my Etsy store ... it passed my personal approval. It is quite the artists' tool. Especially if you are interested in collage with dimension, texture and art that is a totally different art form that what we have been used to seeing or even trying to understand the concept behind the finished piece,,,,the story that goes with it. Sometimes just as interesting as the art piece itself. The molding compound comes as 2 parts. Blue in one jar and White in the other. You use equal amounts of both to activate the chemical components to "set" and harden and yet still be flexible and pliable without distorting. There are probably many different molding brands out there and I am not saying that the one I sell is the best because I haven't tried any of the oth...