Surfaces must be clean, sound, dry & free from grease. Remove loose & flaking paint, to avoid dust inhalation wear a suitable facemask, Treat areas affected by mould, algae, moss or lichen with B&Q fungicidal wash, Fill small hole with an exterior filler or a sand & cement mix for large holes & defects, Chalky, unsound & absorbent surfaces should be scraped, dry brushed & then treated with B&Q exterior masonry primer as directed., Slight variations in colour can occur between paint containers, it is recommended that the containers are intermixed before use, Remove as much paint as possible from the brushes & rollers before washing in warm water, Depending on the nature of the surfaces B&Q Smooth Masonry Paint covers at a rate of 10m-square per litre., Spreading rate will be reduced on rough & absorbent surfaces