Suitable for use on: Bricks - Class A Engineering (occasional use) Class B Engineering Standard Facing Bricks Block Paving (occasional use) Green concrete up to 24 hours old (occasional use) Concrete blocks - Lightweight 3 to 7 Newton blocks Medium Density 7 to 12 Newton blocks Solid Density 12+ Newton blocks Cement screed (occasional use) Limestone Sandstone abrasive (occasional use) Ceramice tiles York Stone