Suitable for use on: Concrete Beams, Kerbs, Pipes and Slabs Flag Stones Flint Aggregate General Purpose Concrete Heavy Steel Reinforced Concrete Light Steel Reinforced Concrete Green Concrete (up to 24 hours old) Concrete Blocks Lightweight 3 to 7 Newton / Medium Density 7 to 12 Newton / Solid Density 12+ Newton Cement Screed Granite Blocks and Worktops Sandstone Abrasive Sandstone Indian Yorkstone