Use EffLock Efflorescence Remover to remove calcium carbonate build up from concrete, masonry and metal surfaces. Apply Efflock Topical Treatment to the clean concrete surface. The water-based, eco-friendly formula reacts with and purges efflorescence from the slab at the nano-molecular level. The impurities are brought to the surface, which can then be washed away. Reducing the occurrence of further leaching of efflorescent salt, resulting in enhanced concrete performance.