Pre-blended dry-shake hardener for concrete floors made of special aggregates based on corundum, Portland cement and special additives. TECHNICAL DATA: Colour of mix: grey; other colours available on request. Density of mix (kg/m³): 2,400. pH of mix:>12.5. Application temperature: +5°C to +35°C. Compressive strength (EN 13892/2) (N/mm²): 50 (after 3 days) - 70 (after 28 days). Flexural strength (EN 13892/2) (N/mm²): 7 (after 3 days) - 9 (after 28 days). Adhesion to concrete (substrate in MC 0.40 - water/cement ratio = 0.40) according to EN 1766 (N/mm²): ? 2 (after 28 days). Böhme abrasion resistance EN 13892-3: Class 3. Reaction to fire EN 13501: Euroclass A1 FL . Storage: 12 months in its original sealed packaging. Application: dry-shaking. Consumption: – manual application: 2.5 to 5.5 kg/m² per coat; – mechanical application: 5 to 8 kg/m². Packaging: 25 kg bags.