StoneTech Mold & Mildew Stain Remover, 24OZ (709ML) Spray Bottle

So after remodeling my bathroom, I had come to regret putting in a natural stone floor in my shower. It is so hard to clean I have literally thrown my back out scrubbing the mildew from the grout and walls. I saw the DuPont mold and mildew stain remover while scrolling through Amazon. I have tried every natural product , home remedies you name it I have probably tried it. Can’t use commercial chemical based cleaners for fear it would ruin the stone. I figured this said it was formulated for the real stone why not try it after reading some great reviews. Let me tell you Wow.. this product is a game changer for me. Super easy to spray on.. I let it sit about 5-10 minutes scrubbed it with an electric scrubber.. hand scrubbed a few spots between the tiles. It came off super easy. It seems to be super gentle on my tile. The smell is a bit strong be careful if you’re sensitive. I can’t believe the difference super happy with this product. Before and after is incredible.

Eliminated the mold fast. Seriously surprised how well this stuff works. Best if you're working with porous surfaces, as it won't damage the color.

I do house cleaning for a living. I've tried everything from chlorine bleach to peroxide etc. to eliminate mildew and pink slime. Nothing works. But this product has been a huge game changer! I'm amazed how the black mildew just disappears with minimal scrubbing! I'm using it on multiple jobs now and highly recommend this cleaner!

Okay, I love this cleaner. It cleans my stone tile way better than anything I have tried. However, almost passed out using it. I’ve cleaned with tons of products and have never had that issue. Maybe I used too much? Definitely have a fan circulating air and open a window!

We had just remodeled our bathroom and I use the shaved pebble for the flooring in the shower so I was thrilled to see there was a product that wouldn't destroy this natural stone but would do the job of keeping control over mold and mildew. So far it's doing a great job and I presume that will continue to do so. Pleased.

After moving into our current home, I was hesitant to use my prior Mold Armor mold remover (which worked great for killing mold, but seems to be discontinued) on our current tile because I don't know what material it is, so I was worried it might be too harsh. The mold got bad enough I finally got around to looking for and trying a stone safe mold remover. This works well enough (seems to be a bit slower, but took care of the mold without issue) and doesn't seem to be causing any problems with the tile. The smell is also much less pungent than the Mold Armor one. Only thing is I still don't know what specific tile we have so I can't share that information.

This is my 4 bottle I have ordered, while the previous 2 bottles worked fine, the 3 bottle came broken I contacted amazon CS and immediately sent a replacement and reimburse my money, the last bottle I just ordered almost burn my lungs. the pump started to leak while pumping leaving a hedious strong smell all over and the smell spread to almost all of my house! This probably would be my last bottle I will order from this product. Can’t chance it with detective quality of the product causing more harm than good.. starting to look for a better alternative that does the work like this one without killing me! While previous bottles had the smell of chlorine it wasn’t as bad as the last one. update: this product definitely change formula didn’t use to be this strong. I only use it 1 every month and everytime with precautions and everything I end with a headache and smelling the chlorine on my nose and I can even taste it. Although it does the job the strong fumes overtake the performance, I’m considering using plain chlorine at this point as I find it even more stronger than the bleach itself. Other thing I notice is the pump from the bottle when is brand new is not a problem but when you get to half way or a 1/4 of the product the pump gets harder to use and it leaks while you spray so it gets everywhere on your hands and at a short distance from you as it leaks though your gloves (if you are wearing some). So if you are highly sensitive to chemicals or already have a health condition I advise you to stay away from this.

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.

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!

Read all information carefully and then apply. The smell is very powerful is the only drawback. Having said that make sure to turn on any fans that you have in the area. This is the best product that I have found for its purpose. I left it on overnight and all stains and mold were gone. I highly recommend the product. Shop arround because price differs greatly between sellers. This a market place product and there are no returns.

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.

the stain in my counter didn’t come out.

After having mould issues for a few years, Stone Tech Mould removal resolved the problem. We periodically reapply to ensure the mould doesn’t return.