So I made a seat insert out of it for my race car. I didn't know how much to use. so i used everything. I threw it in a garbage bag and sat on the seat. The foam expanded enough to push me out of the race car. I got foam. Automobile. Seat. Steering wheel. USE SAFELY! The foam works very well. It cures well and you can add layers. If I had read the instructions it would have been a lot easier. I had to order more foam as I wasted the entire first batch. I really recommend reading the instructions.