Suitable for use on: Asphalt Asphalt over concrete Bricks - Class A Engineering, Class B Engineering, Standard Facing Bricks Clay Products, Concrete Beams, Kerbs, Pipes and Slabs Block Paving Flag Stones Flint Aggregate General Purpose Green concrete up to 24 hours old Heavy Steel Reinforcement Light Steel Reinforcement Roof Tiles Lightweight 3 to 7 Newton blocks Medium Density 7 to 12 Newton blocks Solid Density 12+ Newton blocks Cement screed Sandstone-abrasive York Stone