

🛥️ Clean Like a Pro, Protect Like a Captain!
Marine 31 Mildew Stain Remover Gel is a powerful, fast-acting cleaner designed for marine and household use. Its thick, concentrated gel formula safely removes mildew and tough stains from vinyl, fiberglass, tile, and more without damaging surfaces or leaving odors. Ideal for boat owners and homeowners seeking a reliable, versatile stain remover that works in minutes.





| ASIN | B07V47SPF8 |
| Best Sellers Rank | #149,105 in Health & Household ( See Top 100 in Health & Household ) #57 in Household Mold & Mildew Removers |
| Brand | Marine 31 |
| Brand Name | Marine 31 |
| Contains Liquid Contents? | Yes |
| Customer Reviews | 4.6 out of 5 stars 591 Reviews |
| Included Components | (1) Marine 31 Mildew Stain Remover Gel 20 oz |
| Item Form | Gel |
| Item Type Name | Mildew Stain Remover Gel |
| Item Volume | 20 Fluid Ounces |
| Manufacturer | Marine 31 |
| Material Feature | Unscented |
| Material Features | Unscented |
| Number of Items | 1 |
| Scent | Unscented |
| Special Features | Concentrated |
| Specific Uses For Product | Bathtub, Deck, Shower, Sink, Tile |
| Surface Recommendation | Fiberglass |
| UPC | 082045630480 |
| Unit Count | 20 Fluid Ounces |
| Warranty Description | Standard Marine 31 Warranty |
K**S
Powerful
Arrived quickly. Works well. Do not get on clothes!
M**N
Top Cleaner
Works well on stubborn mold.
A**R
Excellent product. Works better than any other product of its type.
Excellent product. Works better than any other product of its type.
D**Y
Gets the mildew off!
Gets the mildew off for sure. Need to put on vinyl protectant once mildew removed
5**0
The real deal!!!
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!
L**.
Use caution and rinse well
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.
S**A
Best ever
Best spider crap stain remover you name it .. works perfectly
E**N
Amazing!
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.
Trustpilot
2 weeks ago
5 days ago