Concrete Splatter on House Exterior

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Last year we put in a concrete porch in backyard. Some of the concrete splattered on house. We have had a hard time getting concrete off. We are prepping the exterior of house to paint. We have tried power washing and sandpaper, nothing worked. We were afraid of rubbing too hard and taking off more than paint. Do you have any suggestions?

One Response

  1. Try a combination of white vinegar and scraping. The vinegar will soften the concrete a little allowing it to be scraped. The vinegar can be applied with a spray bottle or brushed.

    It will take about 30 minutes for any reactions to start. Keep the concrete splashes wet during and after this time, then check it with the paint scraper or stiff putty knife. If you don't want to scrape, try using a small stiff nylon scrub brush instead. Using a scrub brush will be slower and more labor intensive.

    Make sure to protect your patio from drips of pure vinegar as this will cause spots on your concrete. When the concrete splatters are removed, rinse the area(s) well with a garden hose and prime when dry.

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