Precast Spray was designed to stabilize tire and footprints in soil or sand. Precast Spray is a quick-drying, clear formula that decreases the chance of detail damage due to the weight of the casting material. To use, carefully remove any debris not embedded in the impression. Use a casting frame around impression, if required. Apply several light coats of Precast Spray allowing 1 to 2 minutes drying time between each coat. Pour cast using standard casting procedures.