StoneTech カビ取り剤 24 oz Spray Mold & Mildew Stain Remover 4106330

This product works! For years I have been scrubbing my grout and tile trying to get the orange color out of my grout. I have tried so many different products and nothing has worked. I finally came across this one and thought I would try. Look at the left half of the photo. That was after 10 minutes and a rinse. No scrubbing! This is the first time that my tiles have looked clean!

This product worked better than expected. I had some stubborn mildew stains in the stone floor of my shower. I had treated the stains repeated over the past few years with grocery store mildew products like Tile-X. Those products lightened the stains a little, but they were still very noticeable. When I first tried this product, I didn't think it was working better than Tile-X. But I let it sit for most of the day, and eventually it eliminated the deep set mildew stains in the stone. I don't know whether this product has different chemicals in it, or whether it's just thicker and therefore able to stay and work on the stains better. In either case, after one day (and repeated applications), the stains that have resisted me for years are finally gone. The product has a faint bleach smell, so I'm assuming that's the working ingredient. Very easy to use. Just spray, let it set, then rinse. If your stone is sealed, you'll probably have to use a scrubbing product first to remove the sealant layer, then apply this stain remover, then rinse, clean with an everyday stone cleaning product (like Granite Gold Everyday), then reseal.

I removed mold and mildew from shower tile grout. Spray on wait 10 minutes and wash off!!! Amazing!

This stuff worked so well I actually wanted to cry. We have a full marble shower and it stays warm and wet in there constantly because it’s used a lot and the door can’t be held open. It was impossible to remove the black in the shelves and corners and grout and some of the scrub stuff can damage the stone. I sprayed this and let it sit and everything washes away. It’s amazing. I wish I had a before picture but I didn’t take one because I didn’t actually expect it to work as well as it did. As for the smell it’s kind like a chlorine. I opened the bathroom window and ran the fan for the day and made sure to rinse everything well. I’m ready to buy another bottle and am so happy I found this. It also removed some stubborn stains on the glass door.

I've tried everything from all the big brands. If it had the word Mold or Mildew on the label, I have bought it and tossed it. But this actually took the gross away from the grout in my shower stall. Not 100% but still visibly cleaner. And no harsh smell - just vaguely bleach-y.