Woodland Scenics 1201 Lightweight Hydrocal -- Dry - 1/2-Gallon 1.89L A Scale

Create Perfect Terrain for Your Layout A specially formulated new Lightweight Hydrocal for terrain model builders. Lightweight Hydrocal is nearly half the weight of Hydrocal, goes almost twice as far, and is the tough, quick setting product. *Hydrocal is a product of U.S. Gypsum