One-component, solvent-free primer for polyurethane sealants, for use on absorbent and non-absorbent surfaces. TECHNICAL DATA: Consistency: liquid. Colour: transparent. Inflammable: no. Application temperature: from +5°C to +35°C. Drying time: 40 minutes. Storage: 12 months. Application: brush. Consumption: 1.5-2 g/m (for a 1 cm deep joint). Packaging: 250 g bottles, 2 kg metallic drums.