One-component, solvent-free, moisture curing, rapid-drying polyurethane primer with a very low emission level of volatile organic compounds (VOC) for consolidating and waterproofing cementitious screeds. TECHNICAL DATA: Consistency: liquid. Colour: brown. Set to light foot traffic: 30-40 minutes. Waiting time before laying parquet using reactive adhesives: min. 2 hours, max. 24 hours. Waiting time before laying parquet or smoothing layer on surfaces sprinkled with quartz: 12-24 hours. EMICODE: EC1 R Plus - very low emission. Storage: 12 months. Application: roller or brush. Consumption: 0.2-0.4 kg/m² per coat. Packaging: 10 kg drums.