Now I know why I shouldn't use the store brand of aluminum foil to cover my work surface!!! Look at how it tore when I wanted to lift my project!! I will have to put down another layer of foil and try to use up this cheap stuff. Covering the work surface with foil helps to protect it from wax and heat. The foil also helps you to save the hardened splashes of encaustic so that you can re-melt them.