Incredible product, it cleaned marble that I had been struggling with for a long time and tile that I had also been trying to clean from rust for a long time, I just sprayed it and forgot about it and it became like new without any corrosion. I recommend it!!

In September '23, the scaffolding that had been erected for the installation of external thermal insulation was taken down, one of the legs was rusty and left a mark on the tile. In May '24, I used this specific cleaner and the rust was removed on the first attempt. Then I cleaned dirty joints that had accumulated dirt for many years with just one spray. Finally, I used it on tiles with rust and dirt, placed in a half-finished building over 7 years old. Here, the process had to be repeated 3 to 4 times, and I estimate that 90 to 95% of the rust and dirt was removed. So far, due to work, I haven't repeated the process on those specific tiles. Today, I had the bright idea to use it in the toilet to remove grime that wouldn't budge with the use of chemicals, steam cleaners, baking soda, vinegar, and other alchemies. I removed the water from the toilet, sprayed, waited 10 minutes, scrubbed with a sponge, and done! I highly recommend it.

* 15/03/25 I am returning to say that if it comes into contact with metal, it needs to be washed well within a few minutes, otherwise discoloration will occur on the metal surface. Also, as I pointed out in my initial review, it does not remove everything on the first try; sometimes multiple applications are needed for better results. There may be stains that it will not be able to remove completely. A more honest rating would be 4 out of 5 stars.