Mop and Glo will not harm the concrete floor. But you should not use high concentration cleaner like Mop and Glo on the floor if the floor is exposed to water for a long time. This will make the floor slippery and difficult to walk on. You should avoid using high concentration cleaners like Mop and Glo on concrete floor. If you need to clean the floor, you should use cleaning solution diluted with water.
