Product review: ACT Concrete Cleaner, Treating stains on the basement floor with bio-cleaner microbes : before and after video

 

I purchased ACT to treat a stained area of my basement cement floor. When the product arrived, I was surprised by the size of the container. It was much smaller than I had expected. Unlike the large container shown in the stock video, my container was only 3 inches tall. Additionally, the powder inside was grey, matching the color of my cement floor, rather than the white color depicted in the video. Despite my initial concerns, the contents were sufficient to treat my stained area, which measured 5 feet long by 3 feet wide, in two separate 3-week applications.

The stain on my basement floor had a messy origin. It started when a container of cleaning solution I had stored deteriorated and spilled onto the cement. In an attempt to clean it up, I used a mixture of baking soda and vinegar, but this only worsened the situation by spreading the stain further across the floor. I’ve attached a video that shows the stain before and after the treatment. Note that the "before" photo on January 26, 2025 shows the dry floor even though the stain makes it appear dark in color.

My process:  First, I sprinkled the powder over the stained 5-by-3-foot area. Then, I activated it by lightly misting it with water using a spray bottle. The instructions didn’t specify only one mist to activate the microbes, but I decided to spray the floor with water every day. I noticed that the powder dried out very quickly after each misting, and I thought misting it every day might help the microbes  stay active and work more effectively. I continued this daily misting routine for three weeks. At the end of the first three-week period, I removed the powder and washed the floor with water. The stain had improved somewhat, but I wasn’t fully satisfied with the results.

I decided to repeat the process. I applied a fresh layer of the powder to the same 5-by-3-foot area, activated it with water, and resumed misting it daily for another three weeks. After this second round, I removed the powder and washed the floor again. I took an "after" photo on March 12, 2025, which I’m including in the video. The results show a significant improvement in the appearance of the cement floor. While it’s not perfectly restored to its original state, the stain is much less noticeable compared to the "before" photo and the attached video.

In summary, despite the surprisingly small 3-inch container, the product proved sufficient for two 3-week treatments of my 15-square-foot stained basement floor. My daily misting routine, though not part of the official instructions, may have contributed to the positiv outcome. The floor now looks much better, even if it’s not flawless.

You can find it on Amazon by following this link.

Ali Julia review ★★★★☆

Review of ACT Concrete Cleaner