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Marine 31 Mildew Remover 32 oz.

Marine 31 Mildew Remover 32 oz.
Remove stubborn mildew stains – FAST!

Marine 31 Mildew Remover quickly and safely removes stubborn mildew stains on virtually all marine surfaces, including vinyl seat cushions, rubber fenders, fiberglass, gel coat, canopies, and more! Marine 31 Mildew Remover forgoes volatile cleaners and instead relies on smart chemistry; even severe mildew growth is no match for the incredible cleaning power of Marine 31 Mildew Remover.

Marine 31 Mildew Remover is the best boat mildew cleaner available!If you’re a boater, chances are you’ve dealt with stubborn mildew stains on vinyl cushions. If you’re reading this product description, chances are you’ve been less than satisfied with the performance of other so-called marine mildew cleaners. Fortunately for you, we’ve compared Marine 31 Mildew Remover against other marine mildew cleaners and have found that it removes mildew stains faster, with less effort.

Not all marine mildew removes are created equal! Most over-the-counter marine mildew cleaners rely on heavy concentrations of bleach and other volatile chemicals that actually cause more harm than good. Marine 31 Mildew Remover removes stubborn mildew stains without discoloring, dulling, or drying out vinyl surfaces. Best of all, it still retains the powerful cleaning ability to remove mildew stains – FAST!

Use Marine 31 Mildew Remover on:
  • Vinyl cushions and chairs
  • Rubber fenders
  • Fiberglass
  • Gel coat
  • Canopies
  • Boat tops
Marine 31 Mildew Remover works wonders for household cleaning as well! Use this professional strength formula to clean tile, grout, showers, bathtubs, counters, and sinks.

Marine 31 Mildew Remover works FAST!Directions:
  1. Spray directly onto surface and allow 1-3 minutes for penetration.
  2. If necessary, agitate surface with a brush or terrycloth towel.
  3. For stubborn stains, allow cleaner to penetrate for 5 minutes before agitating.
  4. Thoroughly rinse and dry surface.
  5. Follow with Marine 31 Mildew Guard to protect treated surfaces.
32 oz.

Made in USA

Marine 31 Mildew Remover 32 oz.
Item #: M31-371
Our Price: $29.99
Availability: Usually ships the same business day

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Product Reviews

34 Reviews
91% (31)
6% (2)
0% (0)
0% (0)
3% (1)
97% Recommend this product (33 of 34 responses)
Naples, Florida
Saved us thousands in replacement costs!
We have outdoor furniture made by Ethos. They are outdoor wicker and cream colored “marine leatherâ€. After 5 years of being in the lanai they were starting to mildew even though we cleaned as suggested by the manufacturer. Heartbroken we had almost decided to replace them when I did a little searching on the internet. I purchased this product with the mindset of having to replace anyway, so no harm. I literally sprayed and walked off to get a cloth. By the time I came back, less than 2 minutes, most of the mildew was running down the sides. I simply wiped it off!!!! There were 2 areas on 2 chairs that needed extra applications but EVERY SINGLE PIECE LOOKS BRAND NEW! I am heartbroken I didn’t think to take a before photo. You have a devoted fan and forever customer! (I purchased all the other products that go with this too!)
ProsEffective!!!! It really works!
ConsCan be a little harsh smelling, so use in a well ventilated area.
New Port Richey, FL
works great
best product on the market for mildew removal
Conslittle pricey
Naples, FL
worked like a champ
It was like night and day. I was very skeptical after seeing a video of how fast and well it worked. Tested it out on one section after i took the covers off the boat. Was so easy, i didn't have to agitate the area at all. Would highly recommend this for anyone who has those mildew spots. Going to buy the mildew guard. Looking at other products they have.
Girard, Ga
Best yet!
I have tried all sorts of cleaners to remove mildew from my boat seats. Marine 31 is by far the best I have ever used!!
Okeechobee, Fl
Works great with very little effort!!
Best ever used!
Utica, New York
Amazing Product! I am a believer!
I remained skeptical even after watching many You Tube videos . But I am a believer now! I have a 1996 pontoon boat with seats that are in great condition but were covered with the unsightly black mildew stains.
After just 1 application of Marine 31 Mildew remover the mildew was gone!
Dana Point
Awesome Product!!!!!
I just used Marine 31 on my Boston Whaler backseat cushions that had spots that I could not get rid of. They were small dark spots and I figured I would have to live with them until I used Marine 31. I wish I took a before picture but I was too excited to try this stuff out and I don’t think I was a true believer until now.

Thank You!!!!
Louisville, Ky
Best Product i have found!
I have used multiple mold removing cleaners on my boat and nothing comes close to this one! My seats have not looked this good in years! Thanks
Boca Raton
This stuff is amazing
It works as described
ON, canada
Thank you
It is a masing how it remove mildew, dirt and stain of my boat seats and interior panels.
I would recommend to everybody ho has to deal with mildew issues.
Thank you
Effortlessly removes stain in marine vinyl.
We were going to replace the steering wheel on the boat because it was so deeply mottled with dark stains that we thought would never come out, but it came out new looking with this stuff!
Actually after a year of sitting out in the weather, almost every surface had mildew/mold stain, now the entire boat looks new!
ProsIt took longer to read the directions than it did to remove a stain!
ConsMake sure you read the warnings on the label. Use in well ventilated area.
Lake Anna
Wow this stuff works great!
It's like magic. Best decision to buy this
Works Great
self cleaning right out of the bottle amazing,
ProsSpray and your done no scrubbing no extra work.
Emily Minnesota
If I knew that the mildew was LITERALLY going to vanish before my eyes I would have videotaped it! I am thrilled to have found a product that really worked! To be able to remove mildew from a 36-year-old pontoon is amazing! I will buy again; it's worth every penny!
I have used many other products and didn’t have too much confidence I could get my vinyl clean. Marine 31 changed that! It works wonders and had my 16 year old vinyl looking new. Great product.
Your mildew remover works like magic. It even removed an old mildew stain that was on our seat for years. Awsome product. Worth every dollar.
Long Island NY
Removed tough mildew spots in 1 treatment.
This is some really strong stuff, I tried 4 other products that lightened the mildew marks I had but this stuff got rid of them all together. I couldn’t be happier.
Great product
Cleaned my boat upholstery and outdoor furniture better than anything else I used
ProsEasy to use
ConsChlorine smell
In a word, magic.
It took me many tries to get only half as good as Marine 31 in one application.
Great Product
easy to use, works great!
This really works
I have finally found a mildew remover that works as should this stuff is awesome I highly recommend it
Lake Ozark, MO
Works as promised.
Central, Illinois
The best I’ve ever used
After trying several products this mold remover did the job. I would highly recommend.
Dundalk, Maryland
This product does exactly what it claims to do. I have white cushions, and they look show room quality. I receive allot of compliment.
Central Arkansas
Great purchase
Did exactly what it was supposed to. I was liery at first bc I hadn’t heard of this brand and was nervous about hurting/staining the seats, etc. however after using the product and seeing the results, I have already made another purchase and it is now a common name and I will spread the word
ProsDoes exactly what it is supposed to do
ConsFollow the directions, that?s what they?re there for. **Leave on the recommenced time, if not you will see marks/stains
Sebastian Florida
Removed the mold
It didn't take away the old Orange spots but, it did take away all the gray and black mold best product I've found yet to take care of the boat cushions and seats. Would recommend. I've tried a lot of products for boat cushions and this is by far the best.
Not happy with this product at all
The product didn’t take out much of anything. I tried letting it sit for different time intervals, wiping, scrubbing, etc. save the $ and just buy an off brand mildew remover, worked better than this. Also this took out some of the blue in the upholstery that it ran down onto, so now I have to have my seats redone.
Just works!
tried more then a few items with the same claim, nothing works as well as your Mildew remover. I use so much doing demo's for all my fellow lake friends
ProsQuick, easy, always works.
Consrinse off, and careful if it gets on your clothes. Has a bleaching effect.
Lake Greenwood, South Carolina
Very disappointed
I am very disappointed... with myself for not knowing about Marine 31 Mildew Remover sooner. I could have saved myself literally hours of scrubbing, spraying, eating money on other products that just don't work like they promise. This is the real deal and does what they say. I am very happy with the results and have already sold a few new customers on this awesome sauce.
ProsVirtually effortless removal of mildew stains that I was unable to clean for several years. I started with my Captain's seat, which looked horrible, and said to my girlfriend "Here goes nothing. Let's see what this stuff does". I sprayed it top to bottom, set the spray bottle down and grabbed a cold beverage to give it some time to work. Literally within one minute we both looked at each other and said no way! It looks like it's half clean already. I'd be happy with half clean since I'd basically given up on ever seeing my nice white seats again. Within 3 to 4 minutes the seat looked like new. This is seriously good stuff.
ConsDon't buy the quart size to try. Just go big and get the gallon. I wish I'd done that but I was skeptical. I bought the quart and hadn't even finished before I went inside and ordered the gallon. I have a 24 for pontoon with standard seating. It was in bad shape and I ended up using right at 3 what's to complete the job, bow to stern.