Marine 31 Mildew Stain Remover & Cleaner | Effective for Boats, Home, Patio, & Bathroom | Removes Mildew & Mold Stains | Powerful Cleaning Formula | 16oz

This stuff works like magic!! Spray it on and go do other things, come back and it’s clean. It’s unbelievable!! Is it perfect, NO but it will be 90% or better GONE!!! Great product, highly recommend Marine 31 mold and mildew stain remove. Money well spent!!

I had some mildew stains on the windshield cover from my motorhome, so based on other reviews, I tried this. In short, it worked perfectly. I sprayed it on the cover fairly heavily and let it sit for about 30 minutes, until all the spray was dry. Then I hosed it off to get rid of the excess cleaner (it has a strong chlorine smell, so I suspect it would damage the vinyl if left on without rinsing - that’s an opinion, not a fact). When I was finished, the cover looked as good as new. One heads up for future buyers. I used almost the entire bottle on my windshield cover. If you have a lot of things to clean, you may well need multiple bottles. But, it’s easy to use, no scrubbing, and it works. At least it did for me.

Works excellent!!! Took all of the mold and mildew stains off without scrubbing.

Tried about 10 other mold and mildew cleaners on my pontoon seats, this is the only one that actually removed EVERYTHING! Can’t say enough good things about it, my 2017 seats look brand new.

Worked very well on my patio stones that had spots of mold and mildew from an extremely damp spring. It wasn’t perfect but considering it is just a spray and rinse, it did exceptionally well! Very pleased!

Best stuff ever. I even had a pressure washer at 25 degree and 3500 psi not take it all off. Used this, sprayed it on, went to get a cloth and scrub brush. Came back less than 5 minutes, and it was gone. Then decided to spray the whole boat. Boat now looks 10 years newer.

Literally made my 2006 all white boat interior look new! Almost no scrubbing needed. sprayed it till it was wet, let it sit for 5 minutes, and I have ZERO spots left of black. pure white again!! My seats were covered with black and I was about to have them re-covered (I have a few holes in the seats so I'm headed towards that anyway but this still might delay that by a few years. even my wife commented that the boat seats look new and asked it I had spent some money that we had not talked about 😂

This stuff is amazing. Easy to use and works like magic. My only regret is that I did not take before and after pictures of my boat seats