Efflo Off is a buffered, non-acid, organic salts, technologically advanced concentrated cleaner designed for the removal of efflorescence, mineral and salt deposits from virtually any type of hardscape surface with minimal or no brushing. Efflo Off is mild but may be corrosive to certain woods, metals and plants.  Covering and protecting surrounding areas during application may be required. Efflo Off’s unique Clean Rinse Technology allows residue to be quickly and easily rinsed away with a high or low pressure washer. Efflo Off’s biodegradable and environmentally friendly phosphate free formula replaces several types of harsh acid cleaners and its alkaline nature will help neutralize acid based detergents and cleaners. Ideal for concrete and clay pavers, concrete flat work and retaining walls. Can also be used on manufactured and natural stone, concrete block, and wet cast products. Works on both horizontal and vertical applications.