This is Woodland Scenics" 1/2 Gallon Lightweight Hydrocal. FEATURES: Specially formulated for terrain model builders. Half the weight of Hydrocal and goes twice as far. It"s the tough, quick setting product you will prefer! Use it for casting rocks, creating hard shell scenery, filling in around castings and as an adhesive. Leaves a smooth finish. May be used on Plaster Cloth for making strong hard surfaces. May be tinted with Woodland Scenics Earth Colors (liquid pigments). Instructions are listed on the side of the package. INCLUDES: One Carton of Lightweight Hydrocal REQUIRES: Mixing Utensils and Bowls SPECS: Volume: 1/2 gal 8/9/94sk kr9/5/01 ir/kh