How To Clean Grass Stains from Concrete
Concrete surfaces tend to either actually be outdoors, or have a great deal of intrusion from outdoor materials because of their function in the home (floors for garages, basements, driveways, entry steps, mud rooms, etc). As a consequence, grass stains can be tracked in on shoes, tires and even paws. Removal is fairly simple, but stains should be treated promptly to avoid staining from the grass. Concrete base materials and surface treatments can vary, so even simple methods and materials should be tested in an inconspicuous location before using them in a wider area.
Scrape away and discard excess dirt and grass. Next, dab glycerin directly on the stain with a clean rag, and rub gently to lubricate any residual stain material. Using a solution of 1 gallon water, 1/4 cup washing soda, and 1/4 cup borax applied with a nylon bristle brush, scrub grass stained area with moderate pressure. Rinse the brush regularly, and refresh the cleaning solution as necessary. Flush the area with clear water to help remove cleaning solution residue and dislodged grass. IF there is excess water, blot dry with clean newspaper. Normally, unless there have been gardening projects involved, the initial size of the grass stain will have been relatively small. Nevertheless, if the stain requires further treatment, repeat the cleaning cycle of scraping away loose residue, lubricating with glycerine, scrubbing with the cleaning solution, rinsing with water and blotting dry.
To prevent subsequent stains and make removal of stains easier in the future, you may want to consider refreshing the sealant and using protective mats. Consult the home improvement section of this website, or a professional for specific information on how to properly reseal concrete.
Caution: Never mix cleaning agents or chemicals, the result can be dangerous or deadly. Before cleaning, always test the agent on an inconspicuous location to determine its suitability and to make certain it does not damage the material. Wear appropriate clothing such as gloves and protective eyewear, and work in a well-ventilated area. Accidental inhalation or ingestion of cleaning agents can be hazardous and even fatal, particularly to pets and children.