Bond it Repair Mortar Cem-Quick Sand Cement Quick Dry Rapid Gap Crack Set 5kg Description: A specially formulated, rapid setting, cement based repair mortar for use on brickwork, blockwork and concrete. Sets within 30 minutes. Conforms to EN 1504‐3. Benefits: u Sets hard in half an hour. u Easy to use ‐ simply add water. u Fills holes and cracks in concrete, brick, blocks stone. u For use on walls, floors, kerbstones, steps, etc. Uses For internal and external repairs to most masonry substrates; for gap and crack filling, jointing and sealing earthenware pipes and drains, patching steps and windowsills, setting and bedding WC's, sinks, railings and posts. Preparation All substrates must be clean and free from dust and dirt. Friable material should be removed prior to.