DuPontMold & Mildew Stain Remover for Natural Stone

OMG. After searching high and low for a product that would get rid of that orange soap scum from my marble shower (with white grout) and finding nothing that works (since you’re not supposed to use bleach), I thought I’d keep searching and tried this product. I sprayed, and I could literally see this product eat up that orange stuff to reveal bright white grout. I’m shook!!!

This stuff is magic! I was worried it wouldn’t work well since it’s marble safe, but it’s actually the best cleaner I’ve ever used!

Holy. Crap. Are you kidding me?!? This stuff is amazing. I’m so mad at myself for not finding it sooner and partially destroying me marble floor!It got the orange stains AND the pink mold out! I did t even have to scrub. I let it on for 20 and rinsed. That’s it. Brand new!Now if only I can find something that reseals effectively.

I don’t know why it’s so expensive for a tile cleaner but it works great!

I absolutely love the looks of my Stone pebble shower floor! However…it has become my cleaning nemesis. We live in humid S Florida so mold and discoloration happen quickly. I have tried many products that work okay but never quite get it back to new looking. Read some of these good reviews and am delighted how my floor looks. I sprayed it on and left it for 30 minutes. Before rinsing I used a bristle brush on a couple tough spots that never came clean in the past. I did use almost the whole bottle as my shower floor is large. Could not be happier! I think if used regularly I won’t need as much product or elbow grease. Just ordered the double pack to have on hand.

This garbage should be banned. It is VERY STRONG bleach plus a few chemicals meant to end human lives. I can't believe Amazon and the government allowed this stuff to be sold. I used it once on my marble floor, which would likely be ruined now, and immediately used my remaining consciousness to dump it into the toilet and flush it down ... I thought I saw god. I mean, read the label - "DO NOT CONTACT. IT CAUSES PERMANENT EYE INJURY" ???? For real? Straight bleach works like skin care lotion comparing to this.

This is the BEST mold and mildew remover I have ever used. I will never buy another mold remover again. It did wonders for the grout in my shower tile as well as the walls. Just WONDERFUL!

Marble & Stone, to avoid surface damage, can't be cleaned by acidic methods such as vinegar and other acids (acidic cleaners OK for ceramic/porcelain tiles, but NOT for porous marble/stones). Neutral and base cleaners tend to be effective on "mild dirty conditions." I've tried the usual methods of: Dawn + Full strength Marble Cleaner, Hydrogen Peroxide and Oxyclean (which I think is just powdered version of HydroPerox). Didn't clean mildew stains.I have is a tan-color stain on grout lines, from mildew, which resulted from bad tiling by my contractor - insufficient slope to the drain and surface water ponding (and my kid won't use a squeegee to move water to the drain).Using this product, I saturated the area, left for 10 hours, then added a Dawn + Cleaner solution to re-constitute any dried cleaner, and there was little improvement. The Grout lines continue to be caked with Tan color mildew.Bottom line, try this there are few cleaners for marble/stone mildew, but I wouldn't expect miracles. Best prevention is use a silicone-blade squeegee to prevent water ponding, and a daily shower spray. Or maybe clean more often. Admittedly, the mildew on grout lines has developed for quite a while.