American Art Clay Co (Amaco) Sculptamold is a modeling compound for model landscaping and sculpting. White nontoxic powder material mixes with water and sets in 30 minutes without shrinking. Sculptamold clings to most clean surfaces and can be applied over forms without cracking. Finished material has a porous surface is lightweight yet durable and may be cut, carved, sawed or sanded. Sculptamold may be painted or dyed with standard modeling colors and paints.