Wilko Exterior Masonry Smooth Paint 2.5L gives 15 year all weather protection. The smooth finish formulation, which gives maximum protection, is mould resistant* and resists airborne dirt and grime. It dries in 4-6 hours and is also UV resistant. The contents of this can will cover approximately 25 square metres** which after 2 coats, is about the same width as 2 1/2 standard garage doors (**Approximate coverage depends on the surface of your walls, see the back of can for more details). *Paint contains a biocide to protect dry paint surface from mould degradation.