Plaster castings can be attached to Modeling Sheets (C1174-C1177) with Foam Tack Glue (ST1444) and the “contact gluing method.” Rough up the surface of the Modeling Sheet with #220-grit sandpaper and wet the back of the plaster casting with water. Apply Foam Tack Glue onto the Modeling Sheet and the back of the casting. Let set until the glue dries (maximum working time is one hour), and then press the surfaces together. The glue will bond instantly.
When using Modeling Sheets (C1174-C1177) as a base for a water feature, we recommend applying a double-layer of Plaster Cloth (C1191-C1193, C1203). Modeling Sheets are made of extruded polystyrene (XPS), which outgasses very badly. If not sealed with Plaster Cloth, the foam will outgas into the Realistic Water (C1211) and cause bubbling.
When applying Plaster Cloth onto the Modeling Sheet, wrap it around the edge and under the Sheet to secure it in place.
Our Foam Sheets (ST1422-ST1427) are expanded polystyrene. Our Modeling Sheets (C1174-C1177) are extruded polystyrene.