Description Uses Sika® Chapdur® Premix is intended for use by professionals with experience. It is applied to concrete slab surfaces to enhance their resistance to abrasion and reduce dust formation. It is ideal for floors that experience heavy mechanical wear, such as: Warehouses, docks, and traffic lanes Workshops Parking lots, service stations, garages, etc. Characteristics / Advantages Excellent abrasion resistance Reduces surface dust Enhances impact resistance Increases the hardness of the concrete surface Easy application: Simply sprinkle onto freshly placed concrete Saves time and reduces labor costs, as it eliminates the need for a monolithic screed Provides a smooth, even finish when properly troweled Sustainability VOC Content: < 0 g/L Product Information Composition: A mix of high-quality mineral aggregates combined with cement, additives, and pigments Packaging: 30 kg per bag Shelf Life: 12 months from the production date when stored correctly in unopened packaging Storage Conditions: Keep in its original, unopened packaging in a dry location at temperatures between 5°C and 30°C Density: ~ 1.4 kg/L Abrasion Resistance: > 375% compared to C25 concrete (CS17, 1000 cycles, 1000g) (ASTM D4060) Compressive Strength: 77 N/mm² (ASTM C579 Method B) Tensile Adhesion Strength: > 1.5 N/mm² (Pull-Off Test) Water Absorption: 4.83% (ASTM C413) System Structure Use the following products as outlined in their respective product data sheets: Substrate: Fresh concrete slab (See Substrate Quality below) Dryshake: Manual or machine application of Sika® Chapdur® Premix Surface Levelling: Use power trowel or laser screed Final Smoothing: Achieved with a power trowel Curing Compound: After smoothing, protect the surface by applying a curing compound (Antisol-90) at an approximate dosage of 100–150 g/m² to prevent early drying, crazing, and blooming. Application Information Consumption: 3.0 to 5.0 kg/m², resulting in a surface-strengthening layer of approximately 2-3 mm thickness Ambient Air Temperature: Minimum 5°C, maximum 35°C Relative Air Humidity: Minimum 30% RH, maximum 98% RH Substrate Temperature: Minimum 5°C, maximum 35°C Product Curing Times Foot traffic: 10°C: ~18 hours 20°C: ~12 hours 30°C: ~8 hours Fully serviceable: 10°C: ~10 days 20°C: ~7 days 30°C: ~5 days These times depend on the concrete reaching its design strength for serviceability and are influenced by changes in ambient temperature and relative humidity.
