Alumilite Synthetic Reusable Modeling Resin Mold Clay can be used for creating one time original patterns, sealing mold boxes, and claying up two part molds. With proper storage, the clay will never dry out and can be reused over and over again. Comes in a one pound block.
This clay is very useful because it doesn't dry out. I'm learning to make two-part molds, and this certainly does its job. Whenever I mess up, this clay is easy to just pull off and re-use. Thanks Resin Obsession for the great price and quick shipping!