Because these products contain much more powerful acid than vinegar, protection for your eyes and hands is a must. Rinse and repeat if the concrete doesn’t come clean.įor old or large rust stains, use commercial rust remover.
Pour the vinegar over the stain, let sit for 10 minutes, then scrub with a stiff nylon brush. While those marks can be difficult to conquer completely, these next treatments are sure to greatly reduce them.Ī fairly new rust stain may succumb to the mild acid of white vinegar. Rusty metal outdoor furniture, plant pots, and tools can transfer that ugly orange-brown color to concrete.
REMOVE RUST FROM CONCRETE HOW TO
Photo: How to Remove Rust Stains from Concrete
Rinse the area with a strong blast from your hose. Sprinkle a scouring powder like Comet over any remaining stain and scrub thoroughly with a nylon brush and water. If there’s still quite a bit of stain, spread the paint stripping paste again and leave on for half an hour before again scraping it away. Use a plastic paint scraper to remove the paste and loosened paint. Use a brush or thick sponge to smear the paste over the entire paint spill and allow 20 minutes of dwell time. Mix paint stripper with an absorbent material such as baby powder, diatomaceous earth, or finely ground clay kitty litter until you get the consistency of thick paste. Large or old paint spills need a chemical paint stripper-and that requires eye protection, chemical-resistant gloves, and a respirator (best choice) or a dust mask (suitable only if working in an open area with good ventilation). Pour the solution over the paint, work it into the stain with a stiff, long-handled brush, and then rinse with your hose set to the highest flow. If the stain is relatively fresh and small, put on rubber gloves and eye protection before mixing one cup of TSP into a gallon of hot water. While a slight hint of color might always remain if you spill a large amount of paint onto unsealed concrete, you can remove most of the mess. Repeat the process as necessary on deep-set stains. Finally, blast the spot with your hose set to the highest pressure. Let it soak in for at least 30 minutes, and then scrub with a stiff nylon brush. Mix one cup of TSP (trisodium phosphate) in a gallon of hot water, then pour the solution over the blemish. If the concrete still bears a mark, don rubber gloves and goggles and do the following: Leave the kitty litter in place for at least an hour-or overnight for an extensive or old stain-and then sweep up the mess.įor some new or small concrete stains caused by oil, this is all the treatment you may need. Pour clay or “clumping” cat litter (but not crystal or clay alternatives like corn) over the entire stain and work it in with a stiff broom or brush. Attack stains by soaking up as much oil as possible before it penetrates. Oil spills leave unattractive black splotches on concrete flooring that can also track into your home from the soles of your shoes.
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