Chavant Monu-Melt brings all of the qualities of Clayette - a sulfur-free,non-hardening, tack-free, odor-free, and flexible clay - into a formula that can be melted and applied to a CNC foam armature by brush. By popular demand it is a dark forest green color. 2 lb Brick. Monu-Melt will not oxidize and can be left out or heated and cooled repeatedly without any significant change. Will not dry or crack. Monu-Melt should be melted in a range from 180-200 degrees F. Keeping the clay above 200 degrees F will result in bubbling of the liquid clay. This bubbling is mostly aesthetic, and will not affect the characteristics of the cool clay.