Dulux Trade Weathershield Maximum Exposure Smooth Masonry (MESM) Paint offers exterior durability and protection even in harsh and demanding environments. The unique properties provide a tough and flexible paint film that is up to 5 times more flexible than conventional masonry paints, covering hairline cracks and preventing subsequent cracking and flaking. Weathershield MESM paint contains an added fungicide to inhibit mould growth on the paint film and is suitable for application to surfaces previously painted with masonry paint, including solvent-based finishes. It is particularly suitable for use in changeable weather conditions and is shower resistant only 15 minutes after application. Weathershield MESM paint is formulated for use on most sound, dry, exterior masonry and rendering, including concrete, roughcast, pebble-dash and brickwork which is normally suitable for painting, eg rustic or sand faced bricks. Common or fletton bricks should not be painted. Weathershield MESM paint can also be used on coated Plastisol Coated Coil Cladding that is weathered (with No breakdown) Painting of parapet, freestanding and retaining walls below ground level damp-proof course is inadvisable, as it may be difficult to prevent moisture penetration and consequent failure of the paint coating. Painting this type of wall may also increase the risk of frost damage and spalling of the brickwork or stonework.