Surecrete SureCast™ SC-35103001-30 60 lb Tile Red Dry Powder Concrete Color Hardener. SureCrete’s stamped concrete powder release contains a specially formulated releasing agent that forms a moisture barrier between the stamping tools and wet concrete to allow the release of stamping tools. In addition to releasing agents, the powdered release contains integrated iron oxide pigments that simultaneously provide a secondary accent color to the concrete surface.