High-strength, quick-setting pozzolan mortar with very low water absorption for grouting paved floors with joints from 5 to 30 mm wide subject to heavy loads and intense traffic. TECHNICAL DATA: Pot life of mix: 20 minutes. Set to light foot traffic: 1 hour. Ready for use: 3 days for light to medium traffic, 7 days for heavy traffic. Colour: 113 cement grey. Application: rubber MAPEI trowel or rake. Cleaning: MAPEI sponge or Scotch Brite® pad (or single-head rotary polisher with Scotch Brite® type abrasive felt disk). As an alternative, hydro-cleaner once it has started to harden. Storage: 12 months. Consumption: according to the size of the joints and slabs. Packaging: 25 kg bags.