Dulux Aquamax Primer Undercoat is a high-performance, water-based primer and undercoat designed to deliver excellent adhesion, opacity and a smooth, professional finish on woodwork. It acts as both primer and undercoat, sealing surfaces and reducing the number of coats required. The fast-drying, low-odour formula allows for quick recoating and comfortable indoor application. It provides strong bonding and high opacity on interior and exterior wood surfaces, creating a smooth base for topcoats.