Johnstone's Trade Aqua Water Based Undercoat is an innovative water-based undercoat that is ideal for interior and exterior wood and metals. It looks, feels and applies more like a traditional undercoat but is quick drying, which reduces application times. Transform your space with a stroke of colour and creativity with Johnstone's Trade Aqua Brilliant White Undercoat Paint 1L. This is a premium-quality, water-based primer specifically formulated for both interior and exterior applications on wood and metal surfaces. Its advanced formulation provides the traditional benefits of an undercoat while drying quickly to minimise application time, making it an ideal choice for professional painters and homeowners alike. It can also be used with water-based paints, providing exceptional compatibility and flexibility. Additionally, its low odour and low VOC (volatile organic compound) formula make it an environmentally friendly and efficient option for any project. A water-based undercoat that is formulated to be quick drying and used in conjunction with the Aqua Water Based Gloss.