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  2. Oct 6, 2020 · Got unsightly splotches on your driveway, patio, and garage floor? Here's how to remove concrete stains caused by paint, rust, dirt, oil, and pets.

  3. Oct 23, 2020 · Efflorescence is the white powdery substance on the surfaces of unsealed concrete and the white blush seen with sealed floors. Efflorescence is caused by vapor migrating through the slab bringing soluble salts to the surface of the concrete.

    • Reader Q&A - Also See Recommended Articles & FAQs
    • Question: How Do I Get Rid of These Stains on My Concrete floor?
    • Question: Pink "Efflorescence" on Garage Floor Slab

    On 2022-06-15 by InspectApedia-911 (mod) @Kerry, Thanks for the update; post photos of what you find so that we can take a look, too. On 2022-06-15 by Kerry @InspectApedia-911, thanks! I was leaning towards 3 when I my neighbour offered me some Wet and Forget. I tried it on a small patch and it’s turning a little orange indicating a reaction of som...

    Mike Joseph · Mar 2, 2021 I live in an apartment and trying to identify a concrete stain so that I can properly clean it. It looks like a resident spilled something and didn’t really clean it up. The spill didn’t seem so bad initially (it was kind of light brownish at first), but the stain has become darker and more noticeable. Can anyone identify ...

    I see efflorescence on my concrete garage floor. I also see some pink material as well. Have you ever seen pink efflorescence? Or could it be mold? - Anonymous by private email 2019/09/22

  4. White stains or a white powdery coating on new concrete is not uncommon. Such discoloration, known as efflorescence, is caused by salts that are brought to the surface of new concrete by the natural curing process.

    • Larry Parr
  5. Jan 10, 2024 · Rust stains: White vinegar is a practical, eco-friendly way to remove rust stains from cement patios. Spray it directly onto the stain and let it to sit for less than an hour to penetrate deep stains. Scrub with a stiff-bristle brush.

  6. Mar 24, 2023 · Eliminate rust stains with undiluted distilled white vinegar, scrubbing, and rinsing or using a commercial rust stain remover. Address pet stains by scraping away residue, applying a mixture of dish soap, baking soda, and water, scrubbing, rinsing, and using an oxygenated enzyme pet stain cleaner if needed. Table of Contents.

  7. Efflorescence is often seen as a white fluffy deposit of salt crystals on cementitious (e.g. masonry) wall surfaces. Efflorescence depends on the presence of salt and moisture, and the growth of crystals will continue as long as both are present.

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