Mildew Stain Remover Gel | Thick Gel Formula for Marine, Boat, Home & Patio | Removes Mildew & Stains from Bathrooms & Showers | Effective Cleaner | M31-375 | 20oz

Arrived quickly. Works well. Do not get on clothes!

Works well on stubborn mold.

Excellent product. Works better than any other product of its type.

Gets the mildew off for sure. Need to put on vinyl protectant once mildew removed

I have used other products in the past that did a decent job, but over the years my vinyl seats have gotten worse and worse, the other products just couldn’t do it anymore. I was just about to give up and replace my vinyl but figured I would give marine 31 a shot. This stuff worked.. The gel helped suspend the product on vertical surfaces, and it literally just melted the mildew away. I lightly agitated with a magic eraser pad and then rinsed it off, best these seats have ever looked. If you have stubborn mold/mildew that won’t come off with other cleaners I highly recommend the marine 31 gel!

I was hesitant in the beginning due to the slight chlorine smell. I used it cautiously and did mostly spot cleaning and avoided seams as much as possible. I rinsed well. This is the best mold removal product I’ve found so far. I was surprised it removed or faded out so much of the worst mildew.

Best spider crap stain remover you name it .. works perfectly

This works just like the advertisements and videos! Literally, you can spray and walk away! My bf has been trying to clean the mildew off of his light cream boat seats for three years w/ different chemicals w/ no success. After plenty of research, I thought I’d give it a try…and it worked! My bf is now looking forward to taking his boat out again because he’s not agonizing of having to clean it and it not come clean. I ordered the 20 oz. and it was able to clean my bf’s 21 foot deck boat. However, I noticed there’s some areas I missed, so I ordered another 20 oz. and protectant spray together.