Apply this undercoat from the Dulux Professional range to interior & exterior surfaces using a brush to prepare them for painting. It takes 16 hours to dry and will cover 16 m² per litre on average. Dulux Undercoat is perfect for levelling areas and has superb hiding power for both interior and exterior use on wood or metal surfaces. It clings well and provides an even base for top coats. It is easy to apply and long-lasting. Capacity: 16m²L per coat. This 750ML can will cover 12m² with one coat (approx). Drying Time: Leave for 16 hours to dry. Newly painted doors and windows should not be closed and radiators should not be heated until paint is fully dry. Colour Group: One coat.