Dulux Trade Weathershield Quick Dry Exterior Flexible Undercoat  Part 2 of a 3-part weather-resistant and quick-drying paint system for exterior trim and woodwork. This water-based undercoat offers great flexibility to accommodate the natural movement of wood that occurs with weather changes. Specifically formulated to be used with Dulux Trade Weathershield topcoats to provide up to 8 years protection* for exterior woodwork. Ideal to achieve strong colour changes and high opacity in fewer coats. *if correctly applied as per instructions for use. 8 year all weather protection Flexible formulation Coverage up to 13m² per litre Water-based