Our outside quick dry primer undercoat has been specially developed to give 6 years* all weather protection to exterior wood and metal. It is more durable than conventional undercoat, making it less prone to cracking and blistering.. The perfect base for a finishing topcoat!The contents of this can will cover 10m² which, after 1 coat, is about the same width as 6 standard doors**.*When used as an undercoat to Wilko outside exterior quick dry satin on sound, prepared surfaces. **Calculation based on door height of 2m by 0.8m width.Low VOC content. Water based paint. May produce an allergic reaction. Keep out of reach of children. Always read instructions. Coverage up to 9square meter.