Bostik General Purpose Mortar is a pre-mixed blend of cement and dry sand designed to meet the demands of all interior and exterior masonry applications. Easy-to-use and designed for in-tub mixing, the masonry mortar simply requires the addition of water.Suitable for installation, repair and maintenance projects, including brick and block laying, patching and pointing and masonry repairs, this multi-purpose mortar offers a great balance of convenience and performance. The longer working time of up to 60 minutes at 20°C ensures ample time to handle all masonry work, while its excellent coverage means that just 1kg will fill a void of 440cm³.Setting hard after approximately 12 hours, the ready mixed mortar reaches its full strength in 24-72 hours. Suitable materials: Brickwork, masonry, concrete, stone, flagstones, paving, paths. Coverage: 1kg will fill a void of 440cm³ (depending on application technique).