Dulux Primer & Undercoat for Multi Surfaces is suitable for interior or exterior wood, metal and masonry surfaces. Thanks to its Quick Dry formulation, it's easy and convenient to use. Please note that highly resinous wood or corroded metal will require a specialist primer. Apply 1 coat with a brush to previously coated surfaces or 2 coats to bare surfaces. Leave 2 hours to dry between coats. When fully dry apply an appropriate Dulux paint system.