Pre-blended, ready-to-use industrial hardener for concrete floors made from special quartz in a granulometric curve, Portland cement and special additives. TECHNICAL DATA: Colour of mix: grey, light grey, anthracite, green, brown, red. Density of mix (kg/m³): 2,200. pH of mix:>12.5. Application temperature range: from +5°C to +35°C. Compressive strength EN 13892/2 (N/mm²): 30 (after 1 day); 70 (after 28 days). Flexural strength EN 13892/2 (N/mm²): 6 (after 1 day) 8 (after 28 days). Bond strength on concrete (substrate in MC 0.40 - water/cement ratio = 0.40) according to EN 1766 (N/mm²): ? 2 (after 28 days). Impermeability to water - penetration depth - EN 12390/8 (mm): < 5. Coefficient of capillary absorption EN 1062/3 (kg/m²·h0.5): < 0.1. Böhme abrasion resistance EN 13892/3: Class 6. Reaction to fire EN 13501: Euroclass A1 FL . Storage: 12 months in its original sealed packaging. Application: by dusting. Consumption: – manual application: from 1.5 to 2.5 kg/m² per coat; – mechanical application: from 3 to 5 kg/m². Packaging: 25 kg bags.