How do you clean concrete floors?

I don't think my apt concrete floor was ever sealed properly, or it has worn off. Though I've mopped, there are spots that won't come off. Any suggestions are appreciated. HAPPY NEW YEAR 2019 !

  3 answers
  • Kelli L. Milligan Kelli L. Milligan on Jan 02, 2019

    Concrete can stain, I wouldn't worry about it since you rent.

  • DD DD on Jan 02, 2019

    I agree with Kelli if the concrete is not sealed it will stain and there really isn't much you can do especially if you are a renter

  • Joy Elizabeth Joy Elizabeth on Jan 02, 2019

    Using an etching cleaner will take off the stains. it is very strong cleaner though, so its a big job with moving all the furniture out of the room for the application. A semi transparent stain is also an option to look nice and cover stains.