This organic water based molding powder is made from sea grown kelp. It is used for making single use molds of larger body parts including heads, faces, and torsos; and for craft molds where additional molding time is required. Sets to a firm, rubbery consistency, providing high detail down to finger prints when cast. Features longer setting time (allowing more time to finish your mold), Skin and food safe, Safe for fast set resins, Superior detail, Water based, Creamy consistency for easy application, Tear resistant. Sets in 7-8 minutes. One pound box.