Removing Stains in Concrete
Small stains in concrete countertops and walls can be removed using this simple technique from Fu-Tung Cheng's book, Concrete at Home.
Concrete is vulnerable to stains from such things as lemon juice, wine, or vinegar no matter what sort of sealer or wax you apply to it. These and other acidic liquids can eat into the fines on the surface and roughen it slightly. Of course, one person’s annoying stains are, to another, a lovely patina that reveals years of use. It’s possible to remove individual stains without the need to refinish the entire piece. Below is a step-by-step guide. We recommend passing it on to clients, so they can handle those pesky little stains and abrasions: A stain like may look permanent, but it’s not.
Fu-Tung Cheng is principal of his Berkeley, California firm Cheng Designs and author of the bestselling book Concrete Countertops. Photos by: Matthew Millman