Concrete is a mix of chemicals that falls on the alkaline side of the pH scale and therefore is better removed with products on the acid side of the pH scale. These would include No-Ox and Super Ox. An alternative product for lighter duty removal of concrete would be CJ Industrial Cleaner. It has the advantage of being highly buffered and will have less potential for surface damage than products using “free acid” technology, like the No-Ox and Super- Ox.