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TAL’s X-Tech SuperFlow is suitably designed for application onto concrete substrates. Allow all new concrete work and screeds to cure for at least 6 weeks and 4 weeks respectively before proceeding. The substrate must be structurally sound, clean and dry and free from all traces of surface laitance and contamination such as dust, dirt, waxes, oils, bitumen, old adhesives, paint, grease, weak cement screeds, shutter release and curing agents, sealing compounds, etc. All damaged, defective, deteriorated, friable (powdery) and hollow sounding areas must be removed until a solid background is achieved. These areas must be made good before proceeding. The surface must be prepared, by captive blasting or grinding, to ensure that the aggregate in the concrete is fully exposed and open, ie to achieve a Concrete Surface Profile (CSP) of 5 or 6 (Medium Scarification).