Crown Trade Fastflow Quick Dry Primer Undercoat in Charcoal Grey is a water-based, professional-quality basecoat with quick-drying properties and exceptional coverage. With excellent flow and breatheasy formulation, this breathable primer undercoat has been specially formulated to provide an ideal surface for smooth and easy application of satin and gloss paints to interior and exterior joinery and metalwork. Excellent flow and an advanced water-based formulation ensure that the Fastflow Quick Dry range offers a credible alternative to solvent-based products. Specially formulated for use with Crown Trade's Fastflow Quick Dry Satin and Gloss paints, Fastflow Quick Dry Primer Undercoat behaves like a traditional solvent-based product. The quick-drying properties of Fastflow Quick Dry range make this breathable water-based system a great option for saving time without compromising on quality.